20017075

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3623}}^1$

素因数の和:3663

約数の個数: 24

約数和(自身を含む): 28310688

約数和(自身を除く): 8293613

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 325, 425, 1105, 3623, 5525, 18115, 47099, 61591, 90575, 235495, 307955, 800683, 1177475, 1539775, 4003415, 20017075]

約数ペア:

[(1, 20017075), (5, 4003415), (13, 1539775), (17, 1177475), (25, 800683), (65, 307955), (85, 235495), (221, 90575), (325, 61591), (425, 47099), (1105, 18115), (3623, 5525)]