15872440

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{7487}}^1$

素因数の和:7551

約数の個数: 32

約数和(自身を含む): 36391680

約数和(自身を除く): 20519240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 7487, 14974, 29948, 37435, 59896, 74870, 149740, 299480, 396811, 793622, 1587244, 1984055, 3174488, 3968110, 7936220, 15872440]

約数ペア:

[(1, 15872440), (2, 7936220), (4, 3968110), (5, 3174488), (8, 1984055), (10, 1587244), (20, 793622), (40, 396811), (53, 299480), (106, 149740), (212, 74870), (265, 59896), (424, 37435), (530, 29948), (1060, 14974), (2120, 7487)]