130501820

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{20981}}^1$

素因数の和:21301

約数の個数: 24

約数和(自身を含む): 274948128

約数和(自身を除く): 144446308

約数列:

[1, 2, 4, 5, 10, 20, 311, 622, 1244, 1555, 3110, 6220, 20981, 41962, 83924, 104905, 209810, 419620, 6525091, 13050182, 26100364, 32625455, 65250910, 130501820]

約数ペア:

[(1, 130501820), (2, 65250910), (4, 32625455), (5, 26100364), (10, 13050182), (20, 6525091), (311, 419620), (622, 209810), (1244, 104905), (1555, 83924), (3110, 41962), (6220, 20981)]