141982780

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{163}}^1\times {\mathrm{449}}^1$

素因数の和:718

約数の個数: 48

約数和(自身を含む): 303760800

約数和(自身を除く): 161778020

約数列:

[1, 2, 4, 5, 10, 20, 97, 163, 194, 326, 388, 449, 485, 652, 815, 898, 970, 1630, 1796, 1940, 2245, 3260, 4490, 8980, 15811, 31622, 43553, 63244, 73187, 79055, 87106, 146374, 158110, 174212, 217765, 292748, 316220, 365935, 435530, 731870, 871060, 1463740, 7099139, 14198278, 28396556, 35495695, 70991390, 141982780]

約数ペア:

[(1, 141982780), (2, 70991390), (4, 35495695), (5, 28396556), (10, 14198278), (20, 7099139), (97, 1463740), (163, 871060), (194, 731870), (326, 435530), (388, 365935), (449, 316220), (485, 292748), (652, 217765), (815, 174212), (898, 158110), (970, 146374), (1630, 87106), (1796, 79055), (1940, 73187), (2245, 63244), (3260, 43553), (4490, 31622), (8980, 15811)]