12801425

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{331}}^1$

素因数の和:378

約数の個数: 48

約数和(自身を含む): 20748672

約数和(自身を除く): 7947247

約数列:

[1, 5, 7, 13, 17, 25, 35, 65, 85, 91, 119, 175, 221, 325, 331, 425, 455, 595, 1105, 1547, 1655, 2275, 2317, 2975, 4303, 5525, 5627, 7735, 8275, 11585, 21515, 28135, 30121, 38675, 39389, 57925, 73151, 107575, 140675, 150605, 196945, 365755, 512057, 753025, 984725, 1828775, 2560285, 12801425]

約数ペア:

[(1, 12801425), (5, 2560285), (7, 1828775), (13, 984725), (17, 753025), (25, 512057), (35, 365755), (65, 196945), (85, 150605), (91, 140675), (119, 107575), (175, 73151), (221, 57925), (325, 39389), (331, 38675), (425, 30121), (455, 28135), (595, 21515), (1105, 11585), (1547, 8275), (1655, 7735), (2275, 5627), (2317, 5525), (2975, 4303)]