128154025

素因数分解:

$5^2\times {\mathrm{109}}^1\times {\mathrm{131}}^1\times {\mathrm{359}}^1$

素因数の和:609

約数の個数: 24

約数和(自身を含む): 162043200

約数和(自身を除く): 33889175

約数列:

[1, 5, 25, 109, 131, 359, 545, 655, 1795, 2725, 3275, 8975, 14279, 39131, 47029, 71395, 195655, 235145, 356975, 978275, 1175725, 5126161, 25630805, 128154025]

約数ペア:

[(1, 128154025), (5, 25630805), (25, 5126161), (109, 1175725), (131, 978275), (359, 356975), (545, 235145), (655, 195655), (1795, 71395), (2725, 47029), (3275, 39131), (8975, 14279)]