12718400

素因数分解:

$2^6\times 5^2\times {\mathrm{7949}}^1$

素因数の和:7971

約数の個数: 42

約数和(自身を含む): 31299150

約数和(自身を除く): 18580750

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 7949, 15898, 31796, 39745, 63592, 79490, 127184, 158980, 198725, 254368, 317960, 397450, 508736, 635920, 794900, 1271840, 1589800, 2543680, 3179600, 6359200, 12718400]

約数ペア:

[(1, 12718400), (2, 6359200), (4, 3179600), (5, 2543680), (8, 1589800), (10, 1271840), (16, 794900), (20, 635920), (25, 508736), (32, 397450), (40, 317960), (50, 254368), (64, 198725), (80, 158980), (100, 127184), (160, 79490), (200, 63592), (320, 39745), (400, 31796), (800, 15898), (1600, 7949)]