15898040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{12821}}^1$

素因数の和:12863

約数の個数: 32

約数和(自身を含む): 36927360

約数和(自身を除く): 21029320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 12821, 25642, 51284, 64105, 102568, 128210, 256420, 397451, 512840, 794902, 1589804, 1987255, 3179608, 3974510, 7949020, 15898040]

約数ペア:

[(1, 15898040), (2, 7949020), (4, 3974510), (5, 3179608), (8, 1987255), (10, 1589804), (20, 794902), (31, 512840), (40, 397451), (62, 256420), (124, 128210), (155, 102568), (248, 64105), (310, 51284), (620, 25642), (1240, 12821)]