13139960

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{3691}}^1$

素因数の和:3791

約数の個数: 32

約数和(自身を含む): 29905200

約数和(自身を除く): 16765240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 3691, 7382, 14764, 18455, 29528, 36910, 73820, 147640, 328499, 656998, 1313996, 1642495, 2627992, 3284990, 6569980, 13139960]

約数ペア:

[(1, 13139960), (2, 6569980), (4, 3284990), (5, 2627992), (8, 1642495), (10, 1313996), (20, 656998), (40, 328499), (89, 147640), (178, 73820), (356, 36910), (445, 29528), (712, 18455), (890, 14764), (1780, 7382), (3560, 3691)]