218586920

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{188437}}^1$

素因数の和:188477

約数の個数: 32

約数和(自身を含む): 508782600

約数和(自身を除く): 290195680

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 188437, 376874, 753748, 942185, 1507496, 1884370, 3768740, 5464673, 7537480, 10929346, 21858692, 27323365, 43717384, 54646730, 109293460, 218586920]

約数ペア:

[(1, 218586920), (2, 109293460), (4, 54646730), (5, 43717384), (8, 27323365), (10, 21858692), (20, 10929346), (29, 7537480), (40, 5464673), (58, 3768740), (116, 1884370), (145, 1507496), (232, 942185), (290, 753748), (580, 376874), (1160, 188437)]