90725960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{13421}}^1$

素因数の和:13458

約数の個数: 48

約数和(自身を含む): 221060340

約数和(自身を除く): 130334380

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 3380, 6760, 13421, 26842, 53684, 67105, 107368, 134210, 174473, 268420, 348946, 536840, 697892, 872365, 1395784, 1744730, 2268149, 3489460, 4536298, 6978920, 9072596, 11340745, 18145192, 22681490, 45362980, 90725960]

約数ペア:

[(1, 90725960), (2, 45362980), (4, 22681490), (5, 18145192), (8, 11340745), (10, 9072596), (13, 6978920), (20, 4536298), (26, 3489460), (40, 2268149), (52, 1744730), (65, 1395784), (104, 872365), (130, 697892), (169, 536840), (260, 348946), (338, 268420), (520, 174473), (676, 134210), (845, 107368), (1352, 67105), (1690, 53684), (3380, 26842), (6760, 13421)]