20949207850

素因数分解:

$2^1\times 5^2\times {\mathrm{73}}^1\times {\mathrm{271}}^1\times {\mathrm{21179}}^1$

素因数の和:21535

約数の個数: 48

約数和(自身を含む): 39646926720

約数和(自身を除く): 18697718870

約数列:

[1, 2, 5, 10, 25, 50, 73, 146, 271, 365, 542, 730, 1355, 1825, 2710, 3650, 6775, 13550, 19783, 21179, 39566, 42358, 98915, 105895, 197830, 211790, 494575, 529475, 989150, 1058950, 1546067, 3092134, 5739509, 7730335, 11479018, 15460670, 28697545, 38651675, 57395090, 77303350, 143487725, 286975450, 418984157, 837968314, 2094920785, 4189841570, 10474603925, 20949207850]

約数ペア:

[(1, 20949207850), (2, 10474603925), (5, 4189841570), (10, 2094920785), (25, 837968314), (50, 418984157), (73, 286975450), (146, 143487725), (271, 77303350), (365, 57395090), (542, 38651675), (730, 28697545), (1355, 15460670), (1825, 11479018), (2710, 7730335), (3650, 5739509), (6775, 3092134), (13550, 1546067), (19783, 1058950), (21179, 989150), (39566, 529475), (42358, 494575), (98915, 211790), (105895, 197830)]