28898889280

素因数分解:

$2^6\times 5^1\times {\mathrm{257}}^1\times {\mathrm{351397}}^1$

素因数の和:351671

約数の個数: 56

約数和(自身を含む): 69083441208

約数和(自身を除く): 40184551928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 257, 320, 514, 1028, 1285, 2056, 2570, 4112, 5140, 8224, 10280, 16448, 20560, 41120, 82240, 351397, 702794, 1405588, 1756985, 2811176, 3513970, 5622352, 7027940, 11244704, 14055880, 22489408, 28111760, 56223520, 90309029, 112447040, 180618058, 361236116, 451545145, 722472232, 903090290, 1444944464, 1806180580, 2889888928, 3612361160, 5779777856, 7224722320, 14449444640, 28898889280]

約数ペア:

[(1, 28898889280), (2, 14449444640), (4, 7224722320), (5, 5779777856), (8, 3612361160), (10, 2889888928), (16, 1806180580), (20, 1444944464), (32, 903090290), (40, 722472232), (64, 451545145), (80, 361236116), (160, 180618058), (257, 112447040), (320, 90309029), (514, 56223520), (1028, 28111760), (1285, 22489408), (2056, 14055880), (2570, 11244704), (4112, 7027940), (5140, 5622352), (8224, 3513970), (10280, 2811176), (16448, 1756985), (20560, 1405588), (41120, 702794), (82240, 351397)]