81520525

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{2311}}^1$

素因数の和:2421

約数の個数: 24

約数和(自身を含む): 108368064

約数和(自身を除く): 26847539

約数列:

[1, 5, 17, 25, 83, 85, 415, 425, 1411, 2075, 2311, 7055, 11555, 35275, 39287, 57775, 191813, 196435, 959065, 982175, 3260821, 4795325, 16304105, 81520525]

約数ペア:

[(1, 81520525), (5, 16304105), (17, 4795325), (25, 3260821), (83, 982175), (85, 959065), (415, 196435), (425, 191813), (1411, 57775), (2075, 39287), (2311, 35275), (7055, 11555)]