20251120

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1553}}^1$

素因数の和:1729

約数の個数: 40

約数和(自身を含む): 47403216

約数和(自身を除く): 27152096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 652, 815, 1304, 1553, 1630, 2608, 3106, 3260, 6212, 6520, 7765, 12424, 13040, 15530, 24848, 31060, 62120, 124240, 253139, 506278, 1012556, 1265695, 2025112, 2531390, 4050224, 5062780, 10125560, 20251120]

約数ペア:

[(1, 20251120), (2, 10125560), (4, 5062780), (5, 4050224), (8, 2531390), (10, 2025112), (16, 1265695), (20, 1012556), (40, 506278), (80, 253139), (163, 124240), (326, 62120), (652, 31060), (815, 24848), (1304, 15530), (1553, 13040), (1630, 12424), (2608, 7765), (3106, 6520), (3260, 6212)]