51347980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{223}}^1\times {\mathrm{397}}^1$

素因数の和:658

約数の個数: 48

約数和(自身を含む): 112331520

約数和(自身を除く): 60983540

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 223, 290, 397, 446, 580, 794, 892, 1115, 1588, 1985, 2230, 3970, 4460, 6467, 7940, 11513, 12934, 23026, 25868, 32335, 46052, 57565, 64670, 88531, 115130, 129340, 177062, 230260, 354124, 442655, 885310, 1770620, 2567399, 5134798, 10269596, 12836995, 25673990, 51347980]

約数ペア:

[(1, 51347980), (2, 25673990), (4, 12836995), (5, 10269596), (10, 5134798), (20, 2567399), (29, 1770620), (58, 885310), (116, 442655), (145, 354124), (223, 230260), (290, 177062), (397, 129340), (446, 115130), (580, 88531), (794, 64670), (892, 57565), (1115, 46052), (1588, 32335), (1985, 25868), (2230, 23026), (3970, 12934), (4460, 11513), (6467, 7940)]