13378160

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3889}}^1$

素因数の和:3945

約数の個数: 40

約数和(自身を含む): 31835760

約数和(自身を除く): 18457600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 3889, 7778, 15556, 19445, 31112, 38890, 62224, 77780, 155560, 167227, 311120, 334454, 668908, 836135, 1337816, 1672270, 2675632, 3344540, 6689080, 13378160]

約数ペア:

[(1, 13378160), (2, 6689080), (4, 3344540), (5, 2675632), (8, 1672270), (10, 1337816), (16, 836135), (20, 668908), (40, 334454), (43, 311120), (80, 167227), (86, 155560), (172, 77780), (215, 62224), (344, 38890), (430, 31112), (688, 19445), (860, 15556), (1720, 7778), (3440, 3889)]