90409220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{503}}^1$

素因数の和:585

約数の個数: 96

約数和(自身を含む): 223534080

約数和(自身を除く): 133124860

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 43, 44, 55, 76, 86, 95, 110, 172, 190, 209, 215, 220, 380, 418, 430, 473, 503, 817, 836, 860, 946, 1006, 1045, 1634, 1892, 2012, 2090, 2365, 2515, 3268, 4085, 4180, 4730, 5030, 5533, 8170, 8987, 9460, 9557, 10060, 11066, 16340, 17974, 19114, 21629, 22132, 27665, 35948, 38228, 43258, 44935, 47785, 55330, 86516, 89870, 95570, 105127, 108145, 110660, 179740, 191140, 210254, 216290, 237919, 410951, 420508, 432580, 475838, 525635, 821902, 951676, 1051270, 1189595, 1643804, 2054755, 2102540, 2379190, 4109510, 4520461, 4758380, 8219020, 9040922, 18081844, 22602305, 45204610, 90409220]

約数ペア:

[(1, 90409220), (2, 45204610), (4, 22602305), (5, 18081844), (10, 9040922), (11, 8219020), (19, 4758380), (20, 4520461), (22, 4109510), (38, 2379190), (43, 2102540), (44, 2054755), (55, 1643804), (76, 1189595), (86, 1051270), (95, 951676), (110, 821902), (172, 525635), (190, 475838), (209, 432580), (215, 420508), (220, 410951), (380, 237919), (418, 216290), (430, 210254), (473, 191140), (503, 179740), (817, 110660), (836, 108145), (860, 105127), (946, 95570), (1006, 89870), (1045, 86516), (1634, 55330), (1892, 47785), (2012, 44935), (2090, 43258), (2365, 38228), (2515, 35948), (3268, 27665), (4085, 22132), (4180, 21629), (4730, 19114), (5030, 17974), (5533, 16340), (8170, 11066), (8987, 10060), (9460, 9557)]