2017990195180

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{2879}}^1\times {\mathrm{146639}}^1$

素因数の和:149766

約数の個数: 48

約数和(自身を含む): 4257017856000

約数和(自身を除く): 2239027660820

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 956, 1195, 2390, 2879, 4780, 5758, 11516, 14395, 28790, 57580, 146639, 293278, 586556, 688081, 733195, 1376162, 1466390, 2752324, 2932780, 3440405, 6880810, 13761620, 35046721, 70093442, 140186884, 175233605, 350467210, 422173681, 700934420, 844347362, 1688694724, 2110868405, 4221736810, 8443473620, 100899509759, 201799019518, 403598039036, 504497548795, 1008995097590, 2017990195180]

約数ペア:

[(1, 2017990195180), (2, 1008995097590), (4, 504497548795), (5, 403598039036), (10, 201799019518), (20, 100899509759), (239, 8443473620), (478, 4221736810), (956, 2110868405), (1195, 1688694724), (2390, 844347362), (2879, 700934420), (4780, 422173681), (5758, 350467210), (11516, 175233605), (14395, 140186884), (28790, 70093442), (57580, 35046721), (146639, 13761620), (293278, 6880810), (586556, 3440405), (688081, 2932780), (733195, 2752324), (1376162, 1466390)]