15993520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6449}}^1$

素因数の和:6493

約数の個数: 40

約数和(自身を含む): 38390400

約数和(自身を除く): 22396880

約数列:

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

約数ペア:

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