90118240

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{18169}}^1$

素因数の和:18215

約数の個数: 48

約数和(自身を含む): 219784320

約数和(自身を除く): 129666080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4960, 18169, 36338, 72676, 90845, 145352, 181690, 290704, 363380, 563239, 581408, 726760, 1126478, 1453520, 2252956, 2816195, 2907040, 4505912, 5632390, 9011824, 11264780, 18023648, 22529560, 45059120, 90118240]

約数ペア:

[(1, 90118240), (2, 45059120), (4, 22529560), (5, 18023648), (8, 11264780), (10, 9011824), (16, 5632390), (20, 4505912), (31, 2907040), (32, 2816195), (40, 2252956), (62, 1453520), (80, 1126478), (124, 726760), (155, 581408), (160, 563239), (248, 363380), (310, 290704), (496, 181690), (620, 145352), (992, 90845), (1240, 72676), (2480, 36338), (4960, 18169)]