131108980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{281}}^1\times {\mathrm{569}}^1$

素因数の和:900

約数の個数: 48

約数和(自身を含む): 283545360

約数和(自身を除く): 152436380

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 281, 410, 562, 569, 820, 1124, 1138, 1405, 2276, 2810, 2845, 5620, 5690, 11380, 11521, 23042, 23329, 46084, 46658, 57605, 93316, 115210, 116645, 159889, 230420, 233290, 319778, 466580, 639556, 799445, 1598890, 3197780, 6555449, 13110898, 26221796, 32777245, 65554490, 131108980]

約数ペア:

[(1, 131108980), (2, 65554490), (4, 32777245), (5, 26221796), (10, 13110898), (20, 6555449), (41, 3197780), (82, 1598890), (164, 799445), (205, 639556), (281, 466580), (410, 319778), (562, 233290), (569, 230420), (820, 159889), (1124, 116645), (1138, 115210), (1405, 93316), (2276, 57605), (2810, 46658), (2845, 46084), (5620, 23329), (5690, 23042), (11380, 11521)]