3640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1$

素因数の和:31

約数の個数: 32

約数和(自身を含む): 10080

約数和(自身を除く): 6440

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640]

約数ペア:

[(1, 3640), (2, 1820), (4, 910), (5, 728), (7, 520), (8, 455), (10, 364), (13, 280), (14, 260), (20, 182), (26, 140), (28, 130), (35, 104), (40, 91), (52, 70), (56, 65)]