20045536

素因数分解:

$2^5\times 7^1\times {\mathrm{109}}^1\times {\mathrm{821}}^1$

素因数の和:947

約数の個数: 48

約数和(自身を含む): 45571680

約数和(自身を除く): 25526144

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 109, 112, 218, 224, 436, 763, 821, 872, 1526, 1642, 1744, 3052, 3284, 3488, 5747, 6104, 6568, 11494, 12208, 13136, 22988, 24416, 26272, 45976, 89489, 91952, 178978, 183904, 357956, 626423, 715912, 1252846, 1431824, 2505692, 2863648, 5011384, 10022768, 20045536]

約数ペア:

[(1, 20045536), (2, 10022768), (4, 5011384), (7, 2863648), (8, 2505692), (14, 1431824), (16, 1252846), (28, 715912), (32, 626423), (56, 357956), (109, 183904), (112, 178978), (218, 91952), (224, 89489), (436, 45976), (763, 26272), (821, 24416), (872, 22988), (1526, 13136), (1642, 12208), (1744, 11494), (3052, 6568), (3284, 6104), (3488, 5747)]