257911775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{6211}}^1$

素因数の和:6383

約数の個数: 24

約数和(自身を含む): 351251328

約数和(自身を除く): 93339553

約数列:

[1, 5, 11, 25, 55, 151, 275, 755, 1661, 3775, 6211, 8305, 31055, 41525, 68321, 155275, 341605, 937861, 1708025, 4689305, 10316471, 23446525, 51582355, 257911775]

約数ペア:

[(1, 257911775), (5, 51582355), (11, 23446525), (25, 10316471), (55, 4689305), (151, 1708025), (275, 937861), (755, 341605), (1661, 155275), (3775, 68321), (6211, 41525), (8305, 31055)]