28643560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{65099}}^1$

素因数の和:65121

約数の個数: 32

約数和(自身を含む): 70308000

約数和(自身を除く): 41664440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 65099, 130198, 260396, 325495, 520792, 650990, 716089, 1301980, 1432178, 2603960, 2864356, 3580445, 5728712, 7160890, 14321780, 28643560]

約数ペア:

[(1, 28643560), (2, 14321780), (4, 7160890), (5, 5728712), (8, 3580445), (10, 2864356), (11, 2603960), (20, 1432178), (22, 1301980), (40, 716089), (44, 650990), (55, 520792), (88, 325495), (110, 260396), (220, 130198), (440, 65099)]