638706952

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{359}}^1\times {\mathrm{17107}}^1$

素因数の和:17485

約数の個数: 32

約数和(自身を含む): 1293364800

約数和(自身を除く): 654657848

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 359, 718, 1436, 2872, 4667, 9334, 17107, 18668, 34214, 37336, 68428, 136856, 222391, 444782, 889564, 1779128, 6141413, 12282826, 24565652, 49131304, 79838369, 159676738, 319353476, 638706952]

約数ペア:

[(1, 638706952), (2, 319353476), (4, 159676738), (8, 79838369), (13, 49131304), (26, 24565652), (52, 12282826), (104, 6141413), (359, 1779128), (718, 889564), (1436, 444782), (2872, 222391), (4667, 136856), (9334, 68428), (17107, 37336), (18668, 34214)]