638683448

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{472399}}^1$

素因数の和:472431

約数の個数: 24

約数和(自身を含む): 1296738000

約数和(自身を除く): 658054552

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 169, 338, 676, 1352, 472399, 944798, 1889596, 3779192, 6141187, 12282374, 24564748, 49129496, 79835431, 159670862, 319341724, 638683448]

約数ペア:

[(1, 638683448), (2, 319341724), (4, 159670862), (8, 79835431), (13, 49129496), (26, 24564748), (52, 12282374), (104, 6141187), (169, 3779192), (338, 1889596), (676, 944798), (1352, 472399)]