31842980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{9421}}^1$

素因数の和:9456

約数の個数: 36

約数和(自身を含む): 72417492

約数和(自身を除く): 40574512

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 9421, 18842, 37684, 47105, 94210, 122473, 188420, 244946, 489892, 612365, 1224730, 1592149, 2449460, 3184298, 6368596, 7960745, 15921490, 31842980]

約数ペア:

[(1, 31842980), (2, 15921490), (4, 7960745), (5, 6368596), (10, 3184298), (13, 2449460), (20, 1592149), (26, 1224730), (52, 612365), (65, 489892), (130, 244946), (169, 188420), (260, 122473), (338, 94210), (676, 47105), (845, 37684), (1690, 18842), (3380, 9421)]