56687240

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{17939}}^1$

素因数の和:18029

約数の個数: 32

約数和(自身を含む): 129168000

約数和(自身を除く): 72480760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 17939, 35878, 71756, 89695, 143512, 179390, 358780, 717560, 1417181, 2834362, 5668724, 7085905, 11337448, 14171810, 28343620, 56687240]

約数ペア:

[(1, 56687240), (2, 28343620), (4, 14171810), (5, 11337448), (8, 7085905), (10, 5668724), (20, 2834362), (40, 1417181), (79, 717560), (158, 358780), (316, 179390), (395, 143512), (632, 89695), (790, 71756), (1580, 35878), (3160, 17939)]