25621765

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 34594560

約数和(自身を除く): 8972795

約数列:

[1, 5, 13, 43, 65, 89, 103, 215, 445, 515, 559, 1157, 1339, 2795, 3827, 4429, 5785, 6695, 9167, 19135, 22145, 45835, 49751, 57577, 119171, 248755, 287885, 394181, 595855, 1970905, 5124353, 25621765]

約数ペア:

[(1, 25621765), (5, 5124353), (13, 1970905), (43, 595855), (65, 394181), (89, 287885), (103, 248755), (215, 119171), (445, 57577), (515, 49751), (559, 45835), (1157, 22145), (1339, 19135), (2795, 9167), (3827, 6695), (4429, 5785)]