7405460

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 16262400

約数和(自身を除く): 8856940

約数列:

[1, 2, 4, 5, 10, 20, 43, 79, 86, 109, 158, 172, 215, 218, 316, 395, 430, 436, 545, 790, 860, 1090, 1580, 2180, 3397, 4687, 6794, 8611, 9374, 13588, 16985, 17222, 18748, 23435, 33970, 34444, 43055, 46870, 67940, 86110, 93740, 172220, 370273, 740546, 1481092, 1851365, 3702730, 7405460]

約数ペア:

[(1, 7405460), (2, 3702730), (4, 1851365), (5, 1481092), (10, 740546), (20, 370273), (43, 172220), (79, 93740), (86, 86110), (109, 67940), (158, 46870), (172, 43055), (215, 34444), (218, 33970), (316, 23435), (395, 18748), (430, 17222), (436, 16985), (545, 13588), (790, 9374), (860, 8611), (1090, 6794), (1580, 4687), (2180, 3397)]