38840440

素因数分解:

$2^3\times 5^1\times {\mathrm{653}}^1\times {\mathrm{1487}}^1$

素因数の和:2151

約数の個数: 32

約数和(自身を含む): 87583680

約数和(自身を除く): 48743240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 653, 1306, 1487, 2612, 2974, 3265, 5224, 5948, 6530, 7435, 11896, 13060, 14870, 26120, 29740, 59480, 971011, 1942022, 3884044, 4855055, 7768088, 9710110, 19420220, 38840440]

約数ペア:

[(1, 38840440), (2, 19420220), (4, 9710110), (5, 7768088), (8, 4855055), (10, 3884044), (20, 1942022), (40, 971011), (653, 59480), (1306, 29740), (1487, 26120), (2612, 14870), (2974, 13060), (3265, 11896), (5224, 7435), (5948, 6530)]