189973240

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{29137}}^1$

素因数の和:29311

約数の個数: 32

約数和(自身を含む): 430076880

約数和(自身を除く): 240103640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 29137, 58274, 116548, 145685, 233096, 291370, 582740, 1165480, 4749331, 9498662, 18997324, 23746655, 37994648, 47493310, 94986620, 189973240]

約数ペア:

[(1, 189973240), (2, 94986620), (4, 47493310), (5, 37994648), (8, 23746655), (10, 18997324), (20, 9498662), (40, 4749331), (163, 1165480), (326, 582740), (652, 291370), (815, 233096), (1304, 145685), (1630, 116548), (3260, 58274), (6520, 29137)]