820348540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^3\times {\mathrm{30817}}^1$

素因数の和:30859

約数の個数: 48

約数和(自身を含む): 1894937184

約数和(自身を除く): 1074588644

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 1331, 2420, 2662, 5324, 6655, 13310, 26620, 30817, 61634, 123268, 154085, 308170, 338987, 616340, 677974, 1355948, 1694935, 3389870, 3728857, 6779740, 7457714, 14915428, 18644285, 37288570, 41017427, 74577140, 82034854, 164069708, 205087135, 410174270, 820348540]

約数ペア:

[(1, 820348540), (2, 410174270), (4, 205087135), (5, 164069708), (10, 82034854), (11, 74577140), (20, 41017427), (22, 37288570), (44, 18644285), (55, 14915428), (110, 7457714), (121, 6779740), (220, 3728857), (242, 3389870), (484, 1694935), (605, 1355948), (1210, 677974), (1331, 616340), (2420, 338987), (2662, 308170), (5324, 154085), (6655, 123268), (13310, 61634), (26620, 30817)]