30139820

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{2351}}^1$

素因数の和:3001

約数の個数: 24

約数和(自身を含む): 63419328

約数和(自身を除く): 33279508

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 2351, 2564, 3205, 4702, 6410, 9404, 11755, 12820, 23510, 47020, 1506991, 3013982, 6027964, 7534955, 15069910, 30139820]

約数ペア:

[(1, 30139820), (2, 15069910), (4, 7534955), (5, 6027964), (10, 3013982), (20, 1506991), (641, 47020), (1282, 23510), (2351, 12820), (2564, 11755), (3205, 9404), (4702, 6410)]