2108282320

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{642769}}^1$

素因数の和:642823

約数の個数: 40

約数和(自身を含む): 5021319240

約数和(自身を除く): 2913036920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 642769, 1285538, 2571076, 3213845, 5142152, 6427690, 10284304, 12855380, 25710760, 26353529, 51421520, 52707058, 105414116, 131767645, 210828232, 263535290, 421656464, 527070580, 1054141160, 2108282320]

約数ペア:

[(1, 2108282320), (2, 1054141160), (4, 527070580), (5, 421656464), (8, 263535290), (10, 210828232), (16, 131767645), (20, 105414116), (40, 52707058), (41, 51421520), (80, 26353529), (82, 25710760), (164, 12855380), (205, 10284304), (328, 6427690), (410, 5142152), (656, 3213845), (820, 2571076), (1640, 1285538), (3280, 642769)]