6991400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{2689}}^1$

素因数の和:2718

約数の個数: 48

約数和(自身を含む): 17511900

約数和(自身を除く): 10520500

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 2689, 5378, 10756, 13445, 21512, 26890, 34957, 53780, 67225, 69914, 107560, 134450, 139828, 174785, 268900, 279656, 349570, 537800, 699140, 873925, 1398280, 1747850, 3495700, 6991400]

約数ペア:

[(1, 6991400), (2, 3495700), (4, 1747850), (5, 1398280), (8, 873925), (10, 699140), (13, 537800), (20, 349570), (25, 279656), (26, 268900), (40, 174785), (50, 139828), (52, 134450), (65, 107560), (100, 69914), (104, 67225), (130, 53780), (200, 34957), (260, 26890), (325, 21512), (520, 13445), (650, 10756), (1300, 5378), (2600, 2689)]