215374480

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{20551}}^1$

素因数の和:20695

約数の個数: 40

約数和(自身を含む): 504592704

約数和(自身を除く): 289218224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1310, 2096, 2620, 5240, 10480, 20551, 41102, 82204, 102755, 164408, 205510, 328816, 411020, 822040, 1644080, 2692181, 5384362, 10768724, 13460905, 21537448, 26921810, 43074896, 53843620, 107687240, 215374480]

約数ペア:

[(1, 215374480), (2, 107687240), (4, 53843620), (5, 43074896), (8, 26921810), (10, 21537448), (16, 13460905), (20, 10768724), (40, 5384362), (80, 2692181), (131, 1644080), (262, 822040), (524, 411020), (655, 328816), (1048, 205510), (1310, 164408), (2096, 102755), (2620, 82204), (5240, 41102), (10480, 20551)]