51189125

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{109}}^1$

素因数の和:171

約数の個数: 48

約数和(自身を含む): 73753680

約数和(自身を除く): 22564555

約数列:

[1, 5, 13, 17, 25, 65, 85, 109, 125, 221, 289, 325, 425, 545, 1105, 1417, 1445, 1625, 1853, 2125, 2725, 3757, 5525, 7085, 7225, 9265, 13625, 18785, 24089, 27625, 31501, 35425, 36125, 46325, 93925, 120445, 157505, 177125, 231625, 409513, 469625, 602225, 787525, 2047565, 3011125, 3937625, 10237825, 51189125]

約数ペア:

[(1, 51189125), (5, 10237825), (13, 3937625), (17, 3011125), (25, 2047565), (65, 787525), (85, 602225), (109, 469625), (125, 409513), (221, 231625), (289, 177125), (325, 157505), (425, 120445), (545, 93925), (1105, 46325), (1417, 36125), (1445, 35425), (1625, 31501), (1853, 27625), (2125, 24089), (2725, 18785), (3757, 13625), (5525, 9265), (7085, 7225)]