39978428

素因数分解:

$2^2\times 7^1\times {\mathrm{311}}^1\times {\mathrm{4591}}^1$

素因数の和:4913

約数の個数: 24

約数和(自身を含む): 80231424

約数和(自身を除く): 40252996

約数列:

[1, 2, 4, 7, 14, 28, 311, 622, 1244, 2177, 4354, 4591, 8708, 9182, 18364, 32137, 64274, 128548, 1427801, 2855602, 5711204, 9994607, 19989214, 39978428]

約数ペア:

[(1, 39978428), (2, 19989214), (4, 9994607), (7, 5711204), (14, 2855602), (28, 1427801), (311, 128548), (622, 64274), (1244, 32137), (2177, 18364), (4354, 9182), (4591, 8708)]