720284825

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{739}}^1\times {\mathrm{2999}}^1$

素因数の和:3761

約数の個数: 24

約数和(自身を含む): 963480000

約数和(自身を除く): 243195175

約数列:

[1, 5, 13, 25, 65, 325, 739, 2999, 3695, 9607, 14995, 18475, 38987, 48035, 74975, 194935, 240175, 974675, 2216261, 11081305, 28811393, 55406525, 144056965, 720284825]

約数ペア:

[(1, 720284825), (5, 144056965), (13, 55406525), (25, 28811393), (65, 11081305), (325, 2216261), (739, 974675), (2999, 240175), (3695, 194935), (9607, 74975), (14995, 48035), (18475, 38987)]