199446740

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{223}}^1\times {\mathrm{227}}^1$

素因数の和:656

約数の個数: 48

約数和(自身を含む): 424714752

約数和(自身を除く): 225268012

約数列:

[1, 2, 4, 5, 10, 20, 197, 223, 227, 394, 446, 454, 788, 892, 908, 985, 1115, 1135, 1970, 2230, 2270, 3940, 4460, 4540, 43931, 44719, 50621, 87862, 89438, 101242, 175724, 178876, 202484, 219655, 223595, 253105, 439310, 447190, 506210, 878620, 894380, 1012420, 9972337, 19944674, 39889348, 49861685, 99723370, 199446740]

約数ペア:

[(1, 199446740), (2, 99723370), (4, 49861685), (5, 39889348), (10, 19944674), (20, 9972337), (197, 1012420), (223, 894380), (227, 878620), (394, 506210), (446, 447190), (454, 439310), (788, 253105), (892, 223595), (908, 219655), (985, 202484), (1115, 178876), (1135, 175724), (1970, 101242), (2230, 89438), (2270, 87862), (3940, 50621), (4460, 44719), (4540, 43931)]