90338960

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{499}}^1$

素因数の和:616

約数の個数: 80

約数和(自身を含む): 220224000

約数和(自身を除く): 129885040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 73, 80, 124, 146, 155, 248, 292, 310, 365, 496, 499, 584, 620, 730, 998, 1168, 1240, 1460, 1996, 2263, 2480, 2495, 2920, 3992, 4526, 4990, 5840, 7984, 9052, 9980, 11315, 15469, 18104, 19960, 22630, 30938, 36208, 36427, 39920, 45260, 61876, 72854, 77345, 90520, 123752, 145708, 154690, 181040, 182135, 247504, 291416, 309380, 364270, 582832, 618760, 728540, 1129237, 1237520, 1457080, 2258474, 2914160, 4516948, 5646185, 9033896, 11292370, 18067792, 22584740, 45169480, 90338960]

約数ペア:

[(1, 90338960), (2, 45169480), (4, 22584740), (5, 18067792), (8, 11292370), (10, 9033896), (16, 5646185), (20, 4516948), (31, 2914160), (40, 2258474), (62, 1457080), (73, 1237520), (80, 1129237), (124, 728540), (146, 618760), (155, 582832), (248, 364270), (292, 309380), (310, 291416), (365, 247504), (496, 182135), (499, 181040), (584, 154690), (620, 145708), (730, 123752), (998, 90520), (1168, 77345), (1240, 72854), (1460, 61876), (1996, 45260), (2263, 39920), (2480, 36427), (2495, 36208), (2920, 30938), (3992, 22630), (4526, 19960), (4990, 18104), (5840, 15469), (7984, 11315), (9052, 9980)]