1277955020

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{223}}^1\times {\mathrm{2837}}^1$

素因数の和:3170

約数の個数: 48

約数和(自身を含む): 2723390208

約数和(自身を除く): 1445435188

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 223, 404, 446, 505, 892, 1010, 1115, 2020, 2230, 2837, 4460, 5674, 11348, 14185, 22523, 28370, 45046, 56740, 90092, 112615, 225230, 286537, 450460, 573074, 632651, 1146148, 1265302, 1432685, 2530604, 2865370, 3163255, 5730740, 6326510, 12653020, 63897751, 127795502, 255591004, 319488755, 638977510, 1277955020]

約数ペア:

[(1, 1277955020), (2, 638977510), (4, 319488755), (5, 255591004), (10, 127795502), (20, 63897751), (101, 12653020), (202, 6326510), (223, 5730740), (404, 3163255), (446, 2865370), (505, 2530604), (892, 1432685), (1010, 1265302), (1115, 1146148), (2020, 632651), (2230, 573074), (2837, 450460), (4460, 286537), (5674, 225230), (11348, 112615), (14185, 90092), (22523, 56740), (28370, 45046)]