490933360

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{197957}}^1$

素因数の和:198001

約数の個数: 40

約数和(自身を含む): 1178246016

約数和(自身を除く): 687312656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 197957, 395914, 791828, 989785, 1583656, 1979570, 3167312, 3959140, 6136667, 7918280, 12273334, 15836560, 24546668, 30683335, 49093336, 61366670, 98186672, 122733340, 245466680, 490933360]

約数ペア:

[(1, 490933360), (2, 245466680), (4, 122733340), (5, 98186672), (8, 61366670), (10, 49093336), (16, 30683335), (20, 24546668), (31, 15836560), (40, 12273334), (62, 7918280), (80, 6136667), (124, 3959140), (155, 3167312), (248, 1979570), (310, 1583656), (496, 989785), (620, 791828), (1240, 395914), (2480, 197957)]