20081278

素因数分解:

$2^1\times 7^3\times {\mathrm{73}}^1\times {\mathrm{401}}^1$

素因数の和:497

約数の個数: 32

約数和(自身を含む): 35697600

約数和(自身を除く): 15616322

約数列:

[1, 2, 7, 14, 49, 73, 98, 146, 343, 401, 511, 686, 802, 1022, 2807, 3577, 5614, 7154, 19649, 25039, 29273, 39298, 50078, 58546, 137543, 204911, 275086, 409822, 1434377, 2868754, 10040639, 20081278]

約数ペア:

[(1, 20081278), (2, 10040639), (7, 2868754), (14, 1434377), (49, 409822), (73, 275086), (98, 204911), (146, 137543), (343, 58546), (401, 50078), (511, 39298), (686, 29273), (802, 25039), (1022, 19649), (2807, 7154), (3577, 5614)]