438467420

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{264137}}^1$

素因数の和:264229

約数の個数: 24

約数和(自身を含む): 931878864

約数和(自身を除く): 493411444

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 264137, 528274, 1056548, 1320685, 2641370, 5282740, 21923371, 43846742, 87693484, 109616855, 219233710, 438467420]

約数ペア:

[(1, 438467420), (2, 219233710), (4, 109616855), (5, 87693484), (10, 43846742), (20, 21923371), (83, 5282740), (166, 2641370), (332, 1320685), (415, 1056548), (830, 528274), (1660, 264137)]