259889890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{2521}}^1$

素因数の和:2615

約数の個数: 48

約数和(自身を含む): 515063016

約数和(自身を除く): 255173126

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 122, 130, 169, 305, 338, 610, 793, 845, 1586, 1690, 2521, 3965, 5042, 7930, 10309, 12605, 20618, 25210, 32773, 51545, 65546, 103090, 153781, 163865, 307562, 327730, 426049, 768905, 852098, 1537810, 1999153, 2130245, 3998306, 4260490, 9995765, 19991530, 25988989, 51977978, 129944945, 259889890]

約数ペア:

[(1, 259889890), (2, 129944945), (5, 51977978), (10, 25988989), (13, 19991530), (26, 9995765), (61, 4260490), (65, 3998306), (122, 2130245), (130, 1999153), (169, 1537810), (305, 852098), (338, 768905), (610, 426049), (793, 327730), (845, 307562), (1586, 163865), (1690, 153781), (2521, 103090), (3965, 65546), (5042, 51545), (7930, 32773), (10309, 25210), (12605, 20618)]