31987040

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6449}}^1$

素因数の和:6495

約数の個数: 48

約数和(自身を含む): 78019200

約数和(自身を除く): 46032160

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, 6449, 12898, 25796, 32245, 51592, 64490, 103184, 128980, 199919, 206368, 257960, 399838, 515920, 799676, 999595, 1031840, 1599352, 1999190, 3198704, 3998380, 6397408, 7996760, 15993520, 31987040]

約数ペア:

[(1, 31987040), (2, 15993520), (4, 7996760), (5, 6397408), (8, 3998380), (10, 3198704), (16, 1999190), (20, 1599352), (31, 1031840), (32, 999595), (40, 799676), (62, 515920), (80, 399838), (124, 257960), (155, 206368), (160, 199919), (248, 128980), (310, 103184), (496, 64490), (620, 51592), (992, 32245), (1240, 25796), (2480, 12898), (4960, 6449)]