311084780

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{317}}^1\times {\mathrm{353}}^1$

素因数の和:818

約数の個数: 48

約数和(自身を含む): 661923360

約数和(自身を除く): 350838580

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 317, 353, 556, 634, 695, 706, 1268, 1390, 1412, 1585, 1765, 2780, 3170, 3530, 6340, 7060, 44063, 49067, 88126, 98134, 111901, 176252, 196268, 220315, 223802, 245335, 440630, 447604, 490670, 559505, 881260, 981340, 1119010, 2238020, 15554239, 31108478, 62216956, 77771195, 155542390, 311084780]

約数ペア:

[(1, 311084780), (2, 155542390), (4, 77771195), (5, 62216956), (10, 31108478), (20, 15554239), (139, 2238020), (278, 1119010), (317, 981340), (353, 881260), (556, 559505), (634, 490670), (695, 447604), (706, 440630), (1268, 245335), (1390, 223802), (1412, 220315), (1585, 196268), (1765, 176252), (2780, 111901), (3170, 98134), (3530, 88126), (6340, 49067), (7060, 44063)]