157788796040

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{9369881}}^1$

素因数の和:9370313

約数の個数: 32

約数和(自身を含む): 355868118360

約数和(自身を除く): 198079322320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1684, 2105, 3368, 4210, 8420, 16840, 9369881, 18739762, 37479524, 46849405, 74959048, 93698810, 187397620, 374795240, 3944719901, 7889439802, 15778879604, 19723599505, 31557759208, 39447199010, 78894398020, 157788796040]

約数ペア:

[(1, 157788796040), (2, 78894398020), (4, 39447199010), (5, 31557759208), (8, 19723599505), (10, 15778879604), (20, 7889439802), (40, 3944719901), (421, 374795240), (842, 187397620), (1684, 93698810), (2105, 74959048), (3368, 46849405), (4210, 37479524), (8420, 18739762), (16840, 9369881)]