393820140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{937667}}^1$

素因数の和:937686

約数の個数: 48

約数和(自身を含む): 1260225792

約数和(自身を除く): 866405652

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 937667, 1875334, 2813001, 3750668, 4688335, 5626002, 6563669, 9376670, 11252004, 13127338, 14065005, 18753340, 19691007, 26254676, 28130010, 32818345, 39382014, 56260020, 65636690, 78764028, 98455035, 131273380, 196910070, 393820140]

約数ペア:

[(1, 393820140), (2, 196910070), (3, 131273380), (4, 98455035), (5, 78764028), (6, 65636690), (7, 56260020), (10, 39382014), (12, 32818345), (14, 28130010), (15, 26254676), (20, 19691007), (21, 18753340), (28, 14065005), (30, 13127338), (35, 11252004), (42, 9376670), (60, 6563669), (70, 5626002), (84, 4688335), (105, 3750668), (140, 2813001), (210, 1875334), (420, 937667)]