2102665825

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{431}}^1\times {\mathrm{883}}^1$

素因数の和:1354

約数の個数: 48

約数和(自身を含む): 2983309056

約数和(自身を除く): 880643231

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 325, 425, 431, 883, 1105, 2155, 4415, 5525, 5603, 7327, 10775, 11479, 15011, 22075, 28015, 36635, 57395, 75055, 95251, 140075, 183175, 195143, 286975, 375275, 380573, 476255, 975715, 1902865, 2381275, 4878575, 4947449, 6469741, 9514325, 24737245, 32348705, 84106633, 123686225, 161743525, 420533165, 2102665825]

約数ペア:

[(1, 2102665825), (5, 420533165), (13, 161743525), (17, 123686225), (25, 84106633), (65, 32348705), (85, 24737245), (221, 9514325), (325, 6469741), (425, 4947449), (431, 4878575), (883, 2381275), (1105, 1902865), (2155, 975715), (4415, 476255), (5525, 380573), (5603, 375275), (7327, 286975), (10775, 195143), (11479, 183175), (15011, 140075), (22075, 95251), (28015, 75055), (36635, 57395)]