17729725

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3209}}^1$

素因数の和:3249

約数の個数: 24

約数和(自身を含む): 25076520

約数和(自身を除く): 7346795

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 325, 425, 1105, 3209, 5525, 16045, 41717, 54553, 80225, 208585, 272765, 709189, 1042925, 1363825, 3545945, 17729725]

約数ペア:

[(1, 17729725), (5, 3545945), (13, 1363825), (17, 1042925), (25, 709189), (65, 272765), (85, 208585), (221, 80225), (325, 54553), (425, 41717), (1105, 16045), (3209, 5525)]