81266800

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:108

約数の個数: 180

約数和(自身を含む): 224220520

約数和(自身を除く): 142953720

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 25, 34, 37, 38, 40, 50, 68, 74, 76, 80, 85, 95, 100, 136, 148, 152, 170, 185, 190, 200, 272, 289, 296, 304, 323, 340, 370, 380, 400, 425, 475, 578, 592, 629, 646, 680, 703, 740, 760, 850, 925, 950, 1156, 1258, 1292, 1360, 1406, 1445, 1480, 1520, 1615, 1700, 1850, 1900, 2312, 2516, 2584, 2812, 2890, 2960, 3145, 3230, 3400, 3515, 3700, 3800, 4624, 5032, 5168, 5491, 5624, 5780, 6290, 6460, 6800, 7030, 7225, 7400, 7600, 8075, 10064, 10693, 10982, 11248, 11560, 11951, 12580, 12920, 14060, 14450, 14800, 15725, 16150, 17575, 21386, 21964, 23120, 23902, 25160, 25840, 27455, 28120, 28900, 31450, 32300, 35150, 42772, 43928, 47804, 50320, 53465, 54910, 56240, 57800, 59755, 62900, 64600, 70300, 85544, 87856, 95608, 106930, 109820, 115600, 119510, 125800, 129200, 137275, 140600, 171088, 191216, 203167, 213860, 219640, 239020, 251600, 267325, 274550, 281200, 298775, 406334, 427720, 439280, 478040, 534650, 549100, 597550, 812668, 855440, 956080, 1015835, 1069300, 1098200, 1195100, 1625336, 2031670, 2138600, 2196400, 2390200, 3250672, 4063340, 4277200, 4780400, 5079175, 8126680, 10158350, 16253360, 20316700, 40633400, 81266800]

約数ペア:

[(1, 81266800), (2, 40633400), (4, 20316700), (5, 16253360), (8, 10158350), (10, 8126680), (16, 5079175), (17, 4780400), (19, 4277200), (20, 4063340), (25, 3250672), (34, 2390200), (37, 2196400), (38, 2138600), (40, 2031670), (50, 1625336), (68, 1195100), (74, 1098200), (76, 1069300), (80, 1015835), (85, 956080), (95, 855440), (100, 812668), (136, 597550), (148, 549100), (152, 534650), (170, 478040), (185, 439280), (190, 427720), (200, 406334), (272, 298775), (289, 281200), (296, 274550), (304, 267325), (323, 251600), (340, 239020), (370, 219640), (380, 213860), (400, 203167), (425, 191216), (475, 171088), (578, 140600), (592, 137275), (629, 129200), (646, 125800), (680, 119510), (703, 115600), (740, 109820), (760, 106930), (850, 95608), (925, 87856), (950, 85544), (1156, 70300), (1258, 64600), (1292, 62900), (1360, 59755), (1406, 57800), (1445, 56240), (1480, 54910), (1520, 53465), (1615, 50320), (1700, 47804), (1850, 43928), (1900, 42772), (2312, 35150), (2516, 32300), (2584, 31450), (2812, 28900), (2890, 28120), (2960, 27455), (3145, 25840), (3230, 25160), (3400, 23902), (3515, 23120), (3700, 21964), (3800, 21386), (4624, 17575), (5032, 16150), (5168, 15725), (5491, 14800), (5624, 14450), (5780, 14060), (6290, 12920), (6460, 12580), (6800, 11951), (7030, 11560), (7225, 11248), (7400, 10982), (7600, 10693), (8075, 10064)]