38405060

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{223}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 82790400

約数和(自身を除く): 44385340

約数列:

[1, 2, 4, 5, 10, 20, 79, 109, 158, 218, 223, 316, 395, 436, 446, 545, 790, 892, 1090, 1115, 1580, 2180, 2230, 4460, 8611, 17222, 17617, 24307, 34444, 35234, 43055, 48614, 70468, 86110, 88085, 97228, 121535, 172220, 176170, 243070, 352340, 486140, 1920253, 3840506, 7681012, 9601265, 19202530, 38405060]

約数ペア:

[(1, 38405060), (2, 19202530), (4, 9601265), (5, 7681012), (10, 3840506), (20, 1920253), (79, 486140), (109, 352340), (158, 243070), (218, 176170), (223, 172220), (316, 121535), (395, 97228), (436, 88085), (446, 86110), (545, 70468), (790, 48614), (892, 43055), (1090, 35234), (1115, 34444), (1580, 24307), (2180, 17617), (2230, 17222), (4460, 8611)]