20746136

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{223}}^1\times {\mathrm{401}}^1$

素因数の和:659

約数の個数: 32

約数和(自身を含む): 40521600

約数和(自身を除く): 19775464

約数列:

[1, 2, 4, 8, 29, 58, 116, 223, 232, 401, 446, 802, 892, 1604, 1784, 3208, 6467, 11629, 12934, 23258, 25868, 46516, 51736, 89423, 93032, 178846, 357692, 715384, 2593267, 5186534, 10373068, 20746136]

約数ペア:

[(1, 20746136), (2, 10373068), (4, 5186534), (8, 2593267), (29, 715384), (58, 357692), (116, 178846), (223, 93032), (232, 89423), (401, 51736), (446, 46516), (802, 25868), (892, 23258), (1604, 12934), (1784, 11629), (3208, 6467)]