1668400

素因数分解:

$2^4\times 5^2\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:158

約数の個数: 60

約数和(自身を含む): 4143832

約数和(自身を除く): 2475432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 43, 50, 80, 86, 97, 100, 172, 194, 200, 215, 344, 388, 400, 430, 485, 688, 776, 860, 970, 1075, 1552, 1720, 1940, 2150, 2425, 3440, 3880, 4171, 4300, 4850, 7760, 8342, 8600, 9700, 16684, 17200, 19400, 20855, 33368, 38800, 41710, 66736, 83420, 104275, 166840, 208550, 333680, 417100, 834200, 1668400]

約数ペア:

[(1, 1668400), (2, 834200), (4, 417100), (5, 333680), (8, 208550), (10, 166840), (16, 104275), (20, 83420), (25, 66736), (40, 41710), (43, 38800), (50, 33368), (80, 20855), (86, 19400), (97, 17200), (100, 16684), (172, 9700), (194, 8600), (200, 8342), (215, 7760), (344, 4850), (388, 4300), (400, 4171), (430, 3880), (485, 3440), (688, 2425), (776, 2150), (860, 1940), (970, 1720), (1075, 1552)]