28501945

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1$

素因数の和:345

約数の個数: 32

約数和(自身を含む): 38568960

約数和(自身を除く): 10067015

約数列:

[1, 5, 17, 23, 61, 85, 115, 239, 305, 391, 1037, 1195, 1403, 1955, 4063, 5185, 5497, 7015, 14579, 20315, 23851, 27485, 72895, 93449, 119255, 247843, 335317, 467245, 1239215, 1676585, 5700389, 28501945]

約数ペア:

[(1, 28501945), (5, 5700389), (17, 1676585), (23, 1239215), (61, 467245), (85, 335317), (115, 247843), (239, 119255), (305, 93449), (391, 72895), (1037, 27485), (1195, 23851), (1403, 20315), (1955, 14579), (4063, 7015), (5185, 5497)]