64910690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{9421}}^1$

素因数の和:9494

約数の個数: 32

約数和(自身を含む): 128214576

約数和(自身を除く): 63303886

約数列:

[1, 2, 5, 10, 13, 26, 53, 65, 106, 130, 265, 530, 689, 1378, 3445, 6890, 9421, 18842, 47105, 94210, 122473, 244946, 499313, 612365, 998626, 1224730, 2496565, 4993130, 6491069, 12982138, 32455345, 64910690]

約数ペア:

[(1, 64910690), (2, 32455345), (5, 12982138), (10, 6491069), (13, 4993130), (26, 2496565), (53, 1224730), (65, 998626), (106, 612365), (130, 499313), (265, 244946), (530, 122473), (689, 94210), (1378, 47105), (3445, 18842), (6890, 9421)]