15704720

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1801}}^1$

素因数の和:1923

約数の個数: 40

約数和(自身を含む): 36868920

約数和(自身を除く): 21164200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 1801, 2180, 3602, 4360, 7204, 8720, 9005, 14408, 18010, 28816, 36020, 72040, 144080, 196309, 392618, 785236, 981545, 1570472, 1963090, 3140944, 3926180, 7852360, 15704720]

約数ペア:

[(1, 15704720), (2, 7852360), (4, 3926180), (5, 3140944), (8, 1963090), (10, 1570472), (16, 981545), (20, 785236), (40, 392618), (80, 196309), (109, 144080), (218, 72040), (436, 36020), (545, 28816), (872, 18010), (1090, 14408), (1744, 9005), (1801, 8720), (2180, 7204), (3602, 4360)]