85212560

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:328

約数の個数: 80

約数和(自身を含む): 204153600

約数和(自身を除く): 118941040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 97, 139, 158, 194, 278, 316, 388, 395, 485, 556, 632, 695, 776, 790, 970, 1112, 1264, 1390, 1552, 1580, 1940, 2224, 2780, 3160, 3880, 5560, 6320, 7663, 7760, 10981, 11120, 13483, 15326, 21962, 26966, 30652, 38315, 43924, 53932, 54905, 61304, 67415, 76630, 87848, 107864, 109810, 122608, 134830, 153260, 175696, 215728, 219620, 269660, 306520, 439240, 539320, 613040, 878480, 1065157, 1078640, 2130314, 4260628, 5325785, 8521256, 10651570, 17042512, 21303140, 42606280, 85212560]

約数ペア:

[(1, 85212560), (2, 42606280), (4, 21303140), (5, 17042512), (8, 10651570), (10, 8521256), (16, 5325785), (20, 4260628), (40, 2130314), (79, 1078640), (80, 1065157), (97, 878480), (139, 613040), (158, 539320), (194, 439240), (278, 306520), (316, 269660), (388, 219620), (395, 215728), (485, 175696), (556, 153260), (632, 134830), (695, 122608), (776, 109810), (790, 107864), (970, 87848), (1112, 76630), (1264, 67415), (1390, 61304), (1552, 54905), (1580, 53932), (1940, 43924), (2224, 38315), (2780, 30652), (3160, 26966), (3880, 21962), (5560, 15326), (6320, 13483), (7663, 11120), (7760, 10981)]