19363780

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{4051}}^1$

素因数の和:4299

約数の個数: 24

約数和(自身を含む): 40844160

約数和(自身を除く): 21480380

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 956, 1195, 2390, 4051, 4780, 8102, 16204, 20255, 40510, 81020, 968189, 1936378, 3872756, 4840945, 9681890, 19363780]

約数ペア:

[(1, 19363780), (2, 9681890), (4, 4840945), (5, 3872756), (10, 1936378), (20, 968189), (239, 81020), (478, 40510), (956, 20255), (1195, 16204), (2390, 8102), (4051, 4780)]