261381336

素因数分解:

$2^3\times 3^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1\times {\mathrm{1367}}^1$

素因数の和:1664

約数の個数: 64

約数和(自身を含む): 677652480

約数和(自身を除く): 416271144

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 31, 62, 93, 124, 186, 248, 257, 372, 514, 744, 771, 1028, 1367, 1542, 2056, 2734, 3084, 4101, 5468, 6168, 7967, 8202, 10936, 15934, 16404, 23901, 31868, 32808, 42377, 47802, 63736, 84754, 95604, 127131, 169508, 191208, 254262, 339016, 351319, 508524, 702638, 1017048, 1053957, 1405276, 2107914, 2810552, 4215828, 8431656, 10890889, 21781778, 32672667, 43563556, 65345334, 87127112, 130690668, 261381336]

約数ペア:

[(1, 261381336), (2, 130690668), (3, 87127112), (4, 65345334), (6, 43563556), (8, 32672667), (12, 21781778), (24, 10890889), (31, 8431656), (62, 4215828), (93, 2810552), (124, 2107914), (186, 1405276), (248, 1053957), (257, 1017048), (372, 702638), (514, 508524), (744, 351319), (771, 339016), (1028, 254262), (1367, 191208), (1542, 169508), (2056, 127131), (2734, 95604), (3084, 84754), (4101, 63736), (5468, 47802), (6168, 42377), (7967, 32808), (8202, 31868), (10936, 23901), (15934, 16404)]