123907720

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{223}}^1\times {\mathrm{479}}^1$

素因数の和:742

約数の個数: 64

約数和(自身を含む): 290304000

約数和(自身を除く): 166396280

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 223, 232, 290, 446, 479, 580, 892, 958, 1115, 1160, 1784, 1916, 2230, 2395, 3832, 4460, 4790, 6467, 8920, 9580, 12934, 13891, 19160, 25868, 27782, 32335, 51736, 55564, 64670, 69455, 106817, 111128, 129340, 138910, 213634, 258680, 277820, 427268, 534085, 555640, 854536, 1068170, 2136340, 3097693, 4272680, 6195386, 12390772, 15488465, 24781544, 30976930, 61953860, 123907720]

約数ペア:

[(1, 123907720), (2, 61953860), (4, 30976930), (5, 24781544), (8, 15488465), (10, 12390772), (20, 6195386), (29, 4272680), (40, 3097693), (58, 2136340), (116, 1068170), (145, 854536), (223, 555640), (232, 534085), (290, 427268), (446, 277820), (479, 258680), (580, 213634), (892, 138910), (958, 129340), (1115, 111128), (1160, 106817), (1784, 69455), (1916, 64670), (2230, 55564), (2395, 51736), (3832, 32335), (4460, 27782), (4790, 25868), (6467, 19160), (8920, 13891), (9580, 12934)]