8707660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{313}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 19940256

約数和(自身を除く): 11232596

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 107, 130, 214, 260, 313, 428, 535, 626, 1070, 1252, 1391, 1565, 2140, 2782, 3130, 4069, 5564, 6260, 6955, 8138, 13910, 16276, 20345, 27820, 33491, 40690, 66982, 81380, 133964, 167455, 334910, 435383, 669820, 870766, 1741532, 2176915, 4353830, 8707660]

約数ペア:

[(1, 8707660), (2, 4353830), (4, 2176915), (5, 1741532), (10, 870766), (13, 669820), (20, 435383), (26, 334910), (52, 167455), (65, 133964), (107, 81380), (130, 66982), (214, 40690), (260, 33491), (313, 27820), (428, 20345), (535, 16276), (626, 13910), (1070, 8138), (1252, 6955), (1391, 6260), (1565, 5564), (2140, 4069), (2782, 3130)]