127959460

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{743}}^1$

素因数の和:940

約数の個数: 48

約数和(自身を含む): 274982400

約数和(自身を除く): 147022940

約数列:

[1, 2, 4, 5, 10, 20, 79, 109, 158, 218, 316, 395, 436, 545, 743, 790, 1090, 1486, 1580, 2180, 2972, 3715, 7430, 8611, 14860, 17222, 34444, 43055, 58697, 80987, 86110, 117394, 161974, 172220, 234788, 293485, 323948, 404935, 586970, 809870, 1173940, 1619740, 6397973, 12795946, 25591892, 31989865, 63979730, 127959460]

約数ペア:

[(1, 127959460), (2, 63979730), (4, 31989865), (5, 25591892), (10, 12795946), (20, 6397973), (79, 1619740), (109, 1173940), (158, 809870), (218, 586970), (316, 404935), (395, 323948), (436, 293485), (545, 234788), (743, 172220), (790, 161974), (1090, 117394), (1486, 86110), (1580, 80987), (2180, 58697), (2972, 43055), (3715, 34444), (7430, 17222), (8611, 14860)]