670128956

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{521}}^1\times {\mathrm{647}}^1$

素因数の和:1250

約数の個数: 48

約数和(自身を含む): 1363848192

約数和(自身を除く): 693719236

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 521, 647, 994, 1042, 1294, 1988, 2084, 2588, 3647, 4529, 7294, 9058, 14588, 18116, 36991, 45937, 73982, 91874, 147964, 183748, 258937, 321559, 337087, 517874, 643118, 674174, 1035748, 1286236, 1348348, 2359609, 4719218, 9438436, 23933177, 47866354, 95732708, 167532239, 335064478, 670128956]

約数ペア:

[(1, 670128956), (2, 335064478), (4, 167532239), (7, 95732708), (14, 47866354), (28, 23933177), (71, 9438436), (142, 4719218), (284, 2359609), (497, 1348348), (521, 1286236), (647, 1035748), (994, 674174), (1042, 643118), (1294, 517874), (1988, 337087), (2084, 321559), (2588, 258937), (3647, 183748), (4529, 147964), (7294, 91874), (9058, 73982), (14588, 45937), (18116, 36991)]