156744920

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{22651}}^1$

素因数の和:22835

約数の個数: 32

約数和(自身を含む): 354730320

約数和(自身を除く): 197985400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 3460, 6920, 22651, 45302, 90604, 113255, 181208, 226510, 453020, 906040, 3918623, 7837246, 15674492, 19593115, 31348984, 39186230, 78372460, 156744920]

約数ペア:

[(1, 156744920), (2, 78372460), (4, 39186230), (5, 31348984), (8, 19593115), (10, 15674492), (20, 7837246), (40, 3918623), (173, 906040), (346, 453020), (692, 226510), (865, 181208), (1384, 113255), (1730, 90604), (3460, 45302), (6920, 22651)]