13090120

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{3677}}^1$

素因数の和:3777

約数の個数: 32

約数和(自身を含む): 29791800

約数和(自身を除く): 16701680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 3677, 7354, 14708, 18385, 29416, 36770, 73540, 147080, 327253, 654506, 1309012, 1636265, 2618024, 3272530, 6545060, 13090120]

約数ペア:

[(1, 13090120), (2, 6545060), (4, 3272530), (5, 2618024), (8, 1636265), (10, 1309012), (20, 654506), (40, 327253), (89, 147080), (178, 73540), (356, 36770), (445, 29416), (712, 18385), (890, 14708), (1780, 7354), (3560, 3677)]