81030560

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{239}}^1$

素因数の和:430

約数の個数: 96

約数和(自身を含む): 208293120

約数和(自身を除く): 127262560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 163, 208, 239, 260, 326, 416, 478, 520, 652, 815, 956, 1040, 1195, 1304, 1630, 1912, 2080, 2119, 2390, 2608, 3107, 3260, 3824, 4238, 4780, 5216, 6214, 6520, 7648, 8476, 9560, 10595, 12428, 13040, 15535, 16952, 19120, 21190, 24856, 26080, 31070, 33904, 38240, 38957, 42380, 49712, 62140, 67808, 77914, 84760, 99424, 124280, 155828, 169520, 194785, 248560, 311656, 339040, 389570, 497120, 506441, 623312, 779140, 1012882, 1246624, 1558280, 2025764, 2532205, 3116560, 4051528, 5064410, 6233120, 8103056, 10128820, 16206112, 20257640, 40515280, 81030560]

約数ペア:

[(1, 81030560), (2, 40515280), (4, 20257640), (5, 16206112), (8, 10128820), (10, 8103056), (13, 6233120), (16, 5064410), (20, 4051528), (26, 3116560), (32, 2532205), (40, 2025764), (52, 1558280), (65, 1246624), (80, 1012882), (104, 779140), (130, 623312), (160, 506441), (163, 497120), (208, 389570), (239, 339040), (260, 311656), (326, 248560), (416, 194785), (478, 169520), (520, 155828), (652, 124280), (815, 99424), (956, 84760), (1040, 77914), (1195, 67808), (1304, 62140), (1630, 49712), (1912, 42380), (2080, 38957), (2119, 38240), (2390, 33904), (2608, 31070), (3107, 26080), (3260, 24856), (3824, 21190), (4238, 19120), (4780, 16952), (5216, 15535), (6214, 13040), (6520, 12428), (7648, 10595), (8476, 9560)]