20408756

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{1889}}^1$

素因数の和:2003

約数の個数: 24

約数和(自身を含む): 37202760

約数和(自身を除く): 16794004

約数列:

[1, 2, 4, 37, 73, 74, 146, 148, 292, 1889, 2701, 3778, 5402, 7556, 10804, 69893, 137897, 139786, 275794, 279572, 551588, 5102189, 10204378, 20408756]

約数ペア:

[(1, 20408756), (2, 10204378), (4, 5102189), (37, 551588), (73, 279572), (74, 275794), (146, 139786), (148, 137897), (292, 69893), (1889, 10804), (2701, 7556), (3778, 5402)]