20408040580

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{367}}^1\times {\mathrm{14557}}^1$

素因数の和:15124

約数の個数: 48

約数和(自身を含む): 43201622016

約数和(自身を除く): 22793581436

約数列:

[1, 2, 4, 5, 10, 20, 191, 367, 382, 734, 764, 955, 1468, 1835, 1910, 3670, 3820, 7340, 14557, 29114, 58228, 70097, 72785, 140194, 145570, 280388, 291140, 350485, 700970, 1401940, 2780387, 5342419, 5560774, 10684838, 11121548, 13901935, 21369676, 26712095, 27803870, 53424190, 55607740, 106848380, 1020402029, 2040804058, 4081608116, 5102010145, 10204020290, 20408040580]

約数ペア:

[(1, 20408040580), (2, 10204020290), (4, 5102010145), (5, 4081608116), (10, 2040804058), (20, 1020402029), (191, 106848380), (367, 55607740), (382, 53424190), (734, 27803870), (764, 26712095), (955, 21369676), (1468, 13901935), (1835, 11121548), (1910, 10684838), (3670, 5560774), (3820, 5342419), (7340, 2780387), (14557, 1401940), (29114, 700970), (58228, 350485), (70097, 291140), (72785, 280388), (140194, 145570)]