20145897640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1\times {\mathrm{233}}^1$

素因数の和:452

約数の個数: 256

約数和(自身を含む): 52549585920

約数和(自身を除く): 32403688280

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 37, 40, 44, 47, 55, 74, 88, 94, 110, 113, 148, 185, 188, 220, 226, 233, 235, 296, 370, 376, 407, 440, 452, 466, 470, 517, 565, 740, 814, 904, 932, 940, 1034, 1130, 1165, 1243, 1480, 1628, 1739, 1864, 1880, 2035, 2068, 2260, 2330, 2486, 2563, 2585, 3256, 3478, 4070, 4136, 4181, 4520, 4660, 4972, 5126, 5170, 5311, 6215, 6956, 8140, 8362, 8621, 8695, 9320, 9944, 10252, 10340, 10622, 10951, 12430, 12815, 13912, 16280, 16724, 17242, 17390, 19129, 20504, 20680, 20905, 21244, 21902, 24860, 25630, 26329, 26555, 33448, 34484, 34780, 38258, 41810, 42488, 43105, 43804, 45991, 49720, 51260, 52658, 53110, 54755, 58421, 68968, 69560, 76516, 83620, 86210, 87608, 91982, 94831, 95645, 102520, 105316, 106220, 109510, 116842, 120461, 131645, 153032, 167240, 172420, 183964, 189662, 191290, 196507, 210632, 212440, 219020, 229955, 233684, 240922, 263290, 289619, 292105, 344840, 367928, 379324, 382580, 393014, 405187, 438040, 459910, 467368, 474155, 481844, 526580, 579238, 584210, 602305, 758648, 765160, 786028, 810374, 919820, 948310, 963688, 974173, 982535, 1053160, 1158476, 1168420, 1204610, 1237463, 1448095, 1572056, 1620748, 1839640, 1896620, 1948346, 1965070, 2025935, 2161577, 2316952, 2336840, 2409220, 2474926, 2896190, 3241496, 3793240, 3896692, 3930140, 4051870, 4323154, 4457057, 4818440, 4870865, 4949852, 5792380, 6187315, 7793384, 7860280, 8103740, 8646308, 8914114, 9741730, 9899704, 10715903, 10807885, 11584760, 12374630, 13612093, 16207480, 17292616, 17828228, 19483460, 21431806, 21615770, 22285285, 24749260, 27224186, 35656456, 38966920, 42863612, 43231540, 44570570, 45786131, 49498520, 53579515, 54448372, 68060465, 85727224, 86463080, 89141140, 91572262, 107159030, 108896744, 136120930, 178282280, 183144524, 214318060, 228930655, 272241860, 366289048, 428636120, 457861310, 503647441, 544483720, 915722620, 1007294882, 1831445240, 2014589764, 2518237205, 4029179528, 5036474410, 10072948820, 20145897640]

約数ペア:

[(1, 20145897640), (2, 10072948820), (4, 5036474410), (5, 4029179528), (8, 2518237205), (10, 2014589764), (11, 1831445240), (20, 1007294882), (22, 915722620), (37, 544483720), (40, 503647441), (44, 457861310), (47, 428636120), (55, 366289048), (74, 272241860), (88, 228930655), (94, 214318060), (110, 183144524), (113, 178282280), (148, 136120930), (185, 108896744), (188, 107159030), (220, 91572262), (226, 89141140), (233, 86463080), (235, 85727224), (296, 68060465), (370, 54448372), (376, 53579515), (407, 49498520), (440, 45786131), (452, 44570570), (466, 43231540), (470, 42863612), (517, 38966920), (565, 35656456), (740, 27224186), (814, 24749260), (904, 22285285), (932, 21615770), (940, 21431806), (1034, 19483460), (1130, 17828228), (1165, 17292616), (1243, 16207480), (1480, 13612093), (1628, 12374630), (1739, 11584760), (1864, 10807885), (1880, 10715903), (2035, 9899704), (2068, 9741730), (2260, 8914114), (2330, 8646308), (2486, 8103740), (2563, 7860280), (2585, 7793384), (3256, 6187315), (3478, 5792380), (4070, 4949852), (4136, 4870865), (4181, 4818440), (4520, 4457057), (4660, 4323154), (4972, 4051870), (5126, 3930140), (5170, 3896692), (5311, 3793240), (6215, 3241496), (6956, 2896190), (8140, 2474926), (8362, 2409220), (8621, 2336840), (8695, 2316952), (9320, 2161577), (9944, 2025935), (10252, 1965070), (10340, 1948346), (10622, 1896620), (10951, 1839640), (12430, 1620748), (12815, 1572056), (13912, 1448095), (16280, 1237463), (16724, 1204610), (17242, 1168420), (17390, 1158476), (19129, 1053160), (20504, 982535), (20680, 974173), (20905, 963688), (21244, 948310), (21902, 919820), (24860, 810374), (25630, 786028), (26329, 765160), (26555, 758648), (33448, 602305), (34484, 584210), (34780, 579238), (38258, 526580), (41810, 481844), (42488, 474155), (43105, 467368), (43804, 459910), (45991, 438040), (49720, 405187), (51260, 393014), (52658, 382580), (53110, 379324), (54755, 367928), (58421, 344840), (68968, 292105), (69560, 289619), (76516, 263290), (83620, 240922), (86210, 233684), (87608, 229955), (91982, 219020), (94831, 212440), (95645, 210632), (102520, 196507), (105316, 191290), (106220, 189662), (109510, 183964), (116842, 172420), (120461, 167240), (131645, 153032)]