20050910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{73}}^1\times {\mathrm{227}}^1$

素因数の和:329

約数の個数: 48

約数和(自身を含む): 40391568

約数和(自身を除く): 20340658

約数列:

[1, 2, 5, 10, 11, 22, 55, 73, 110, 121, 146, 227, 242, 365, 454, 605, 730, 803, 1135, 1210, 1606, 2270, 2497, 4015, 4994, 8030, 8833, 12485, 16571, 17666, 24970, 27467, 33142, 44165, 54934, 82855, 88330, 137335, 165710, 182281, 274670, 364562, 911405, 1822810, 2005091, 4010182, 10025455, 20050910]

約数ペア:

[(1, 20050910), (2, 10025455), (5, 4010182), (10, 2005091), (11, 1822810), (22, 911405), (55, 364562), (73, 274670), (110, 182281), (121, 165710), (146, 137335), (227, 88330), (242, 82855), (365, 54934), (454, 44165), (605, 33142), (730, 27467), (803, 24970), (1135, 17666), (1210, 16571), (1606, 12485), (2270, 8833), (2497, 8030), (4015, 4994)]