315055240

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{129121}}^1$

素因数の和:129193

約数の個数: 32

約数和(自身を含む): 720500760

約数和(自身を除く): 405445520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 129121, 258242, 516484, 645605, 1032968, 1291210, 2582420, 5164840, 7876381, 15752762, 31505524, 39381905, 63011048, 78763810, 157527620, 315055240]

約数ペア:

[(1, 315055240), (2, 157527620), (4, 78763810), (5, 63011048), (8, 39381905), (10, 31505524), (20, 15752762), (40, 7876381), (61, 5164840), (122, 2582420), (244, 1291210), (305, 1032968), (488, 645605), (610, 516484), (1220, 258242), (2440, 129121)]