252190280

素因数分解:

$2^3\times 5^1\times {\mathrm{397}}^1\times {\mathrm{15881}}^1$

素因数の和:16289

約数の個数: 32

約数和(自身を含む): 568893240

約数和(自身を除く): 316702960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 397, 794, 1588, 1985, 3176, 3970, 7940, 15880, 15881, 31762, 63524, 79405, 127048, 158810, 317620, 635240, 6304757, 12609514, 25219028, 31523785, 50438056, 63047570, 126095140, 252190280]

約数ペア:

[(1, 252190280), (2, 126095140), (4, 63047570), (5, 50438056), (8, 31523785), (10, 25219028), (20, 12609514), (40, 6304757), (397, 635240), (794, 317620), (1588, 158810), (1985, 127048), (3176, 79405), (3970, 63524), (7940, 31762), (15880, 15881)]