9992780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{521}}^1$

素因数の和:674

約数の個数: 48

約数和(自身を含む): 24204096

約数和(自身を除く): 14211316

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 137, 140, 274, 521, 548, 685, 959, 1042, 1370, 1918, 2084, 2605, 2740, 3647, 3836, 4795, 5210, 7294, 9590, 10420, 14588, 18235, 19180, 36470, 71377, 72940, 142754, 285508, 356885, 499639, 713770, 999278, 1427540, 1998556, 2498195, 4996390, 9992780]

約数ペア:

[(1, 9992780), (2, 4996390), (4, 2498195), (5, 1998556), (7, 1427540), (10, 999278), (14, 713770), (20, 499639), (28, 356885), (35, 285508), (70, 142754), (137, 72940), (140, 71377), (274, 36470), (521, 19180), (548, 18235), (685, 14588), (959, 10420), (1042, 9590), (1370, 7294), (1918, 5210), (2084, 4795), (2605, 3836), (2740, 3647)]