201567920

素因数分解:

$2^4\times 5^1\times {\mathrm{1399}}^1\times {\mathrm{1801}}^1$

素因数の和:3213

約数の個数: 40

約数和(自身を含む): 469240800

約数和(自身を除く): 267672880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1399, 1801, 2798, 3602, 5596, 6995, 7204, 9005, 11192, 13990, 14408, 18010, 22384, 27980, 28816, 36020, 55960, 72040, 111920, 144080, 2519599, 5039198, 10078396, 12597995, 20156792, 25195990, 40313584, 50391980, 100783960, 201567920]

約数ペア:

[(1, 201567920), (2, 100783960), (4, 50391980), (5, 40313584), (8, 25195990), (10, 20156792), (16, 12597995), (20, 10078396), (40, 5039198), (80, 2519599), (1399, 144080), (1801, 111920), (2798, 72040), (3602, 55960), (5596, 36020), (6995, 28816), (7204, 27980), (9005, 22384), (11192, 18010), (13990, 14408)]