261853306

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:367

約数の個数: 64

約数和(自身を含む): 479074176

約数和(自身を除く): 217220870

約数列:

[1, 2, 11, 13, 22, 26, 41, 82, 137, 143, 163, 274, 286, 326, 451, 533, 902, 1066, 1507, 1781, 1793, 2119, 3014, 3562, 3586, 4238, 5617, 5863, 6683, 11234, 11726, 13366, 19591, 22331, 23309, 39182, 44662, 46618, 61787, 73021, 73513, 86879, 123574, 146042, 147026, 173758, 245641, 290303, 491282, 580606, 803231, 915571, 955669, 1606462, 1831142, 1911338, 3193333, 6386666, 10071281, 11902423, 20142562, 23804846, 130926653, 261853306]

約数ペア:

[(1, 261853306), (2, 130926653), (11, 23804846), (13, 20142562), (22, 11902423), (26, 10071281), (41, 6386666), (82, 3193333), (137, 1911338), (143, 1831142), (163, 1606462), (274, 955669), (286, 915571), (326, 803231), (451, 580606), (533, 491282), (902, 290303), (1066, 245641), (1507, 173758), (1781, 147026), (1793, 146042), (2119, 123574), (3014, 86879), (3562, 73513), (3586, 73021), (4238, 61787), (5617, 46618), (5863, 44662), (6683, 39182), (11234, 23309), (11726, 22331), (13366, 19591)]