20179947400

素因数分解:

$2^3\times 5^2\times {\mathrm{131}}^1\times {\mathrm{770227}}^1$

素因数の和:770374

約数の個数: 48

約数和(自身を含む): 47276594640

約数和(自身を除く): 27096647240

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 131, 200, 262, 524, 655, 1048, 1310, 2620, 3275, 5240, 6550, 13100, 26200, 770227, 1540454, 3080908, 3851135, 6161816, 7702270, 15404540, 19255675, 30809080, 38511350, 77022700, 100899737, 154045400, 201799474, 403598948, 504498685, 807197896, 1008997370, 2017994740, 2522493425, 4035989480, 5044986850, 10089973700, 20179947400]

約数ペア:

[(1, 20179947400), (2, 10089973700), (4, 5044986850), (5, 4035989480), (8, 2522493425), (10, 2017994740), (20, 1008997370), (25, 807197896), (40, 504498685), (50, 403598948), (100, 201799474), (131, 154045400), (200, 100899737), (262, 77022700), (524, 38511350), (655, 30809080), (1048, 19255675), (1310, 15404540), (2620, 7702270), (3275, 6161816), (5240, 3851135), (6550, 3080908), (13100, 1540454), (26200, 770227)]