1538920

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{487}}^1$

素因数の和:577

約数の個数: 32

約数和(自身を含む): 3513600

約数和(自身を除く): 1974680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 487, 632, 790, 974, 1580, 1948, 2435, 3160, 3896, 4870, 9740, 19480, 38473, 76946, 153892, 192365, 307784, 384730, 769460, 1538920]

約数ペア:

[(1, 1538920), (2, 769460), (4, 384730), (5, 307784), (8, 192365), (10, 153892), (20, 76946), (40, 38473), (79, 19480), (158, 9740), (316, 4870), (395, 3896), (487, 3160), (632, 2435), (790, 1948), (974, 1580)]