20674780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{2503}}^1$

素因数の和:2578

約数の個数: 48

約数和(自身を含む): 50480640

約数和(自身を除く): 29805860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 59, 70, 118, 140, 236, 295, 413, 590, 826, 1180, 1652, 2065, 2503, 4130, 5006, 8260, 10012, 12515, 17521, 25030, 35042, 50060, 70084, 87605, 147677, 175210, 295354, 350420, 590708, 738385, 1033739, 1476770, 2067478, 2953540, 4134956, 5168695, 10337390, 20674780]

約数ペア:

[(1, 20674780), (2, 10337390), (4, 5168695), (5, 4134956), (7, 2953540), (10, 2067478), (14, 1476770), (20, 1033739), (28, 738385), (35, 590708), (59, 350420), (70, 295354), (118, 175210), (140, 147677), (236, 87605), (295, 70084), (413, 50060), (590, 35042), (826, 25030), (1180, 17521), (1652, 12515), (2065, 10012), (2503, 8260), (4130, 5006)]