2801928025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{3917}}^1$

素因数の和:4042

約数の個数: 48

約数和(自身を含む): 3917749248

約数和(自身を除く): 1115821223

約数列:

[1, 5, 13, 25, 31, 65, 71, 155, 325, 355, 403, 775, 923, 1775, 2015, 2201, 3917, 4615, 10075, 11005, 19585, 23075, 28613, 50921, 55025, 97925, 121427, 143065, 254605, 278107, 607135, 715325, 1273025, 1390535, 1578551, 3035675, 3615391, 6952675, 7892755, 8621317, 18076955, 39463775, 43106585, 90384775, 112077121, 215532925, 560385605, 2801928025]

約数ペア:

[(1, 2801928025), (5, 560385605), (13, 215532925), (25, 112077121), (31, 90384775), (65, 43106585), (71, 39463775), (155, 18076955), (325, 8621317), (355, 7892755), (403, 6952675), (775, 3615391), (923, 3035675), (1775, 1578551), (2015, 1390535), (2201, 1273025), (3917, 715325), (4615, 607135), (10075, 278107), (11005, 254605), (19585, 143065), (23075, 121427), (28613, 97925), (50921, 55025)]