16811320

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^2\times {\mathrm{307}}^1$

素因数の和:392

約数の個数: 48

約数和(自身を含む): 39002040

約数和(自身を除く): 22190720

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 307, 370, 614, 740, 1228, 1369, 1480, 1535, 2456, 2738, 3070, 5476, 6140, 6845, 10952, 11359, 12280, 13690, 22718, 27380, 45436, 54760, 56795, 90872, 113590, 227180, 420283, 454360, 840566, 1681132, 2101415, 3362264, 4202830, 8405660, 16811320]

約数ペア:

[(1, 16811320), (2, 8405660), (4, 4202830), (5, 3362264), (8, 2101415), (10, 1681132), (20, 840566), (37, 454360), (40, 420283), (74, 227180), (148, 113590), (185, 90872), (296, 56795), (307, 54760), (370, 45436), (614, 27380), (740, 22718), (1228, 13690), (1369, 12280), (1480, 11359), (1535, 10952), (2456, 6845), (2738, 6140), (3070, 5476)]