1420400

素因数分解:

$2^4\times 5^2\times {\mathrm{53}}^1\times {\mathrm{67}}^1$

素因数の和:138

約数の個数: 60

約数和(自身を含む): 3528792

約数和(自身を除く): 2108392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 53, 67, 80, 100, 106, 134, 200, 212, 265, 268, 335, 400, 424, 530, 536, 670, 848, 1060, 1072, 1325, 1340, 1675, 2120, 2650, 2680, 3350, 3551, 4240, 5300, 5360, 6700, 7102, 10600, 13400, 14204, 17755, 21200, 26800, 28408, 35510, 56816, 71020, 88775, 142040, 177550, 284080, 355100, 710200, 1420400]

約数ペア:

[(1, 1420400), (2, 710200), (4, 355100), (5, 284080), (8, 177550), (10, 142040), (16, 88775), (20, 71020), (25, 56816), (40, 35510), (50, 28408), (53, 26800), (67, 21200), (80, 17755), (100, 14204), (106, 13400), (134, 10600), (200, 7102), (212, 6700), (265, 5360), (268, 5300), (335, 4240), (400, 3551), (424, 3350), (530, 2680), (536, 2650), (670, 2120), (848, 1675), (1060, 1340), (1072, 1325)]