161324780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{1103}}^1$

素因数の和:1286

約数の個数: 48

約数和(自身を含む): 347203584

約数和(自身を除く): 185878804

約数列:

[1, 2, 4, 5, 10, 20, 71, 103, 142, 206, 284, 355, 412, 515, 710, 1030, 1103, 1420, 2060, 2206, 4412, 5515, 7313, 11030, 14626, 22060, 29252, 36565, 73130, 78313, 113609, 146260, 156626, 227218, 313252, 391565, 454436, 568045, 783130, 1136090, 1566260, 2272180, 8066239, 16132478, 32264956, 40331195, 80662390, 161324780]

約数ペア:

[(1, 161324780), (2, 80662390), (4, 40331195), (5, 32264956), (10, 16132478), (20, 8066239), (71, 2272180), (103, 1566260), (142, 1136090), (206, 783130), (284, 568045), (355, 454436), (412, 391565), (515, 313252), (710, 227218), (1030, 156626), (1103, 146260), (1420, 113609), (2060, 78313), (2206, 73130), (4412, 36565), (5515, 29252), (7313, 22060), (11030, 14626)]