20219556080

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1\times {\mathrm{16871}}^1$

素因数の和:17166

約数の個数: 80

約数和(自身を含む): 47901362688

約数和(自身を除く): 27681806608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 211, 284, 355, 422, 568, 710, 844, 1055, 1136, 1420, 1688, 2110, 2840, 3376, 4220, 5680, 8440, 14981, 16871, 16880, 29962, 33742, 59924, 67484, 74905, 84355, 119848, 134968, 149810, 168710, 239696, 269936, 299620, 337420, 599240, 674840, 1197841, 1198480, 1349680, 2395682, 3559781, 4791364, 5989205, 7119562, 9582728, 11978410, 14239124, 17798905, 19165456, 23956820, 28478248, 35597810, 47913640, 56956496, 71195620, 95827280, 142391240, 252744451, 284782480, 505488902, 1010977804, 1263722255, 2021955608, 2527444510, 4043911216, 5054889020, 10109778040, 20219556080]

約数ペア:

[(1, 20219556080), (2, 10109778040), (4, 5054889020), (5, 4043911216), (8, 2527444510), (10, 2021955608), (16, 1263722255), (20, 1010977804), (40, 505488902), (71, 284782480), (80, 252744451), (142, 142391240), (211, 95827280), (284, 71195620), (355, 56956496), (422, 47913640), (568, 35597810), (710, 28478248), (844, 23956820), (1055, 19165456), (1136, 17798905), (1420, 14239124), (1688, 11978410), (2110, 9582728), (2840, 7119562), (3376, 5989205), (4220, 4791364), (5680, 3559781), (8440, 2395682), (14981, 1349680), (16871, 1198480), (16880, 1197841), (29962, 674840), (33742, 599240), (59924, 337420), (67484, 299620), (74905, 269936), (84355, 239696), (119848, 168710), (134968, 149810)]