2818340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{491}}^1$

素因数の和:548

約数の個数: 48

約数和(自身を含む): 6943104

約数和(自身を除く): 4124764

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 287, 410, 491, 574, 820, 982, 1148, 1435, 1964, 2455, 2870, 3437, 4910, 5740, 6874, 9820, 13748, 17185, 20131, 34370, 40262, 68740, 80524, 100655, 140917, 201310, 281834, 402620, 563668, 704585, 1409170, 2818340]

約数ペア:

[(1, 2818340), (2, 1409170), (4, 704585), (5, 563668), (7, 402620), (10, 281834), (14, 201310), (20, 140917), (28, 100655), (35, 80524), (41, 68740), (70, 40262), (82, 34370), (140, 20131), (164, 17185), (205, 13748), (287, 9820), (410, 6874), (491, 5740), (574, 4910), (820, 3437), (982, 2870), (1148, 2455), (1435, 1964)]