31255510

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1987}}^1$

素因数の和:2029

約数の個数: 48

約数和(自身を含む): 66629808

約数和(自身を除く): 35374298

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 121, 130, 143, 242, 286, 605, 715, 1210, 1430, 1573, 1987, 3146, 3974, 7865, 9935, 15730, 19870, 21857, 25831, 43714, 51662, 109285, 129155, 218570, 240427, 258310, 284141, 480854, 568282, 1202135, 1420705, 2404270, 2841410, 3125551, 6251102, 15627755, 31255510]

約数ペア:

[(1, 31255510), (2, 15627755), (5, 6251102), (10, 3125551), (11, 2841410), (13, 2404270), (22, 1420705), (26, 1202135), (55, 568282), (65, 480854), (110, 284141), (121, 258310), (130, 240427), (143, 218570), (242, 129155), (286, 109285), (605, 51662), (715, 43714), (1210, 25831), (1430, 21857), (1573, 19870), (1987, 15730), (3146, 9935), (3974, 7865)]