202172060

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1\times {\mathrm{643}}^1$

素因数の和:930

約数の個数: 48

約数和(自身を含む): 432768000

約数和(自身を除く): 230595940

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 199, 316, 395, 398, 643, 790, 796, 995, 1286, 1580, 1990, 2572, 3215, 3980, 6430, 12860, 15721, 31442, 50797, 62884, 78605, 101594, 127957, 157210, 203188, 253985, 255914, 314420, 507970, 511828, 639785, 1015940, 1279570, 2559140, 10108603, 20217206, 40434412, 50543015, 101086030, 202172060]

約数ペア:

[(1, 202172060), (2, 101086030), (4, 50543015), (5, 40434412), (10, 20217206), (20, 10108603), (79, 2559140), (158, 1279570), (199, 1015940), (316, 639785), (395, 511828), (398, 507970), (643, 314420), (790, 255914), (796, 253985), (995, 203188), (1286, 157210), (1580, 127957), (1990, 101594), (2572, 78605), (3215, 62884), (3980, 50797), (6430, 31442), (12860, 15721)]