31421321000

素因数分解:

$2^3\times 5^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{547}}^1$

素因数の和:725

約数の個数: 256

約数和(自身を含む): 81247795200

約数和(自身を除く): 49826474200

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 31, 34, 40, 50, 62, 68, 85, 100, 109, 124, 125, 136, 155, 170, 200, 218, 248, 250, 310, 340, 425, 436, 500, 527, 545, 547, 620, 680, 775, 850, 872, 1000, 1054, 1090, 1094, 1240, 1550, 1700, 1853, 2108, 2125, 2180, 2188, 2635, 2725, 2735, 3100, 3379, 3400, 3706, 3875, 4216, 4250, 4360, 4376, 5270, 5450, 5470, 6200, 6758, 7412, 7750, 8500, 9265, 9299, 10540, 10900, 10940, 13175, 13516, 13625, 13675, 14824, 15500, 16895, 16957, 17000, 18530, 18598, 21080, 21800, 21880, 26350, 27032, 27250, 27350, 31000, 33790, 33914, 37060, 37196, 46325, 46495, 52700, 54500, 54700, 57443, 59623, 65875, 67580, 67828, 68375, 74120, 74392, 84475, 84785, 92650, 92990, 105400, 109000, 109400, 114886, 119246, 131750, 135160, 135656, 136750, 168950, 169570, 185300, 185980, 229772, 231625, 232475, 238492, 263500, 273500, 287215, 288269, 298115, 337900, 339140, 370600, 371960, 422375, 423925, 459544, 463250, 464950, 476984, 527000, 547000, 574430, 576538, 596230, 675800, 678280, 844750, 847850, 926500, 929900, 1013591, 1148860, 1153076, 1162375, 1192460, 1436075, 1441345, 1490575, 1689500, 1695700, 1848313, 1853000, 1859800, 2027182, 2119625, 2297720, 2306152, 2324750, 2384920, 2872150, 2882690, 2981150, 3379000, 3391400, 3696626, 4054364, 4239250, 4649500, 5067955, 5744300, 5765380, 5962300, 7180375, 7206725, 7393252, 7452875, 8108728, 8478500, 9241565, 9299000, 10135910, 11488600, 11530760, 11924600, 14360750, 14413450, 14786504, 14905750, 16957000, 18483130, 20271820, 25339775, 28721500, 28826900, 29811500, 31421321, 36033625, 36966260, 40543640, 46207825, 50679550, 57443000, 57653800, 59623000, 62842642, 72067250, 73932520, 92415650, 101359100, 125685284, 126698875, 144134500, 157106605, 184831300, 202718200, 231039125, 251370568, 253397750, 288269000, 314213210, 369662600, 462078250, 506795500, 628426420, 785533025, 924156500, 1013591000, 1256852840, 1571066050, 1848313000, 3142132100, 3927665125, 6284264200, 7855330250, 15710660500, 31421321000]

約数ペア:

[(1, 31421321000), (2, 15710660500), (4, 7855330250), (5, 6284264200), (8, 3927665125), (10, 3142132100), (17, 1848313000), (20, 1571066050), (25, 1256852840), (31, 1013591000), (34, 924156500), (40, 785533025), (50, 628426420), (62, 506795500), (68, 462078250), (85, 369662600), (100, 314213210), (109, 288269000), (124, 253397750), (125, 251370568), (136, 231039125), (155, 202718200), (170, 184831300), (200, 157106605), (218, 144134500), (248, 126698875), (250, 125685284), (310, 101359100), (340, 92415650), (425, 73932520), (436, 72067250), (500, 62842642), (527, 59623000), (545, 57653800), (547, 57443000), (620, 50679550), (680, 46207825), (775, 40543640), (850, 36966260), (872, 36033625), (1000, 31421321), (1054, 29811500), (1090, 28826900), (1094, 28721500), (1240, 25339775), (1550, 20271820), (1700, 18483130), (1853, 16957000), (2108, 14905750), (2125, 14786504), (2180, 14413450), (2188, 14360750), (2635, 11924600), (2725, 11530760), (2735, 11488600), (3100, 10135910), (3379, 9299000), (3400, 9241565), (3706, 8478500), (3875, 8108728), (4216, 7452875), (4250, 7393252), (4360, 7206725), (4376, 7180375), (5270, 5962300), (5450, 5765380), (5470, 5744300), (6200, 5067955), (6758, 4649500), (7412, 4239250), (7750, 4054364), (8500, 3696626), (9265, 3391400), (9299, 3379000), (10540, 2981150), (10900, 2882690), (10940, 2872150), (13175, 2384920), (13516, 2324750), (13625, 2306152), (13675, 2297720), (14824, 2119625), (15500, 2027182), (16895, 1859800), (16957, 1853000), (17000, 1848313), (18530, 1695700), (18598, 1689500), (21080, 1490575), (21800, 1441345), (21880, 1436075), (26350, 1192460), (27032, 1162375), (27250, 1153076), (27350, 1148860), (31000, 1013591), (33790, 929900), (33914, 926500), (37060, 847850), (37196, 844750), (46325, 678280), (46495, 675800), (52700, 596230), (54500, 576538), (54700, 574430), (57443, 547000), (59623, 527000), (65875, 476984), (67580, 464950), (67828, 463250), (68375, 459544), (74120, 423925), (74392, 422375), (84475, 371960), (84785, 370600), (92650, 339140), (92990, 337900), (105400, 298115), (109000, 288269), (109400, 287215), (114886, 273500), (119246, 263500), (131750, 238492), (135160, 232475), (135656, 231625), (136750, 229772), (168950, 185980), (169570, 185300)]