15420275

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2791}}^1$

素因数の和:2831

約数の個数: 24

約数和(自身を含む): 21811104

約数和(自身を除く): 6390829

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 325, 425, 1105, 2791, 5525, 13955, 36283, 47447, 69775, 181415, 237235, 616811, 907075, 1186175, 3084055, 15420275]

約数ペア:

[(1, 15420275), (5, 3084055), (13, 1186175), (17, 907075), (25, 616811), (65, 237235), (85, 181415), (221, 69775), (325, 47447), (425, 36283), (1105, 13955), (2791, 5525)]