2021948920

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{383}}^1\times {\mathrm{691}}^1$

素因数の和:1276

約数の個数: 64

約数和(自身を含む): 4591779840

約数和(自身を除く): 2569830920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 383, 691, 764, 766, 955, 1382, 1528, 1532, 1910, 1915, 2764, 3064, 3455, 3820, 3830, 5528, 6910, 7640, 7660, 13820, 15320, 27640, 73153, 131981, 146306, 263962, 264653, 292612, 365765, 527924, 529306, 585224, 659905, 731530, 1055848, 1058612, 1319810, 1323265, 1463060, 2117224, 2639620, 2646530, 2926120, 5279240, 5293060, 10586120, 50548723, 101097446, 202194892, 252743615, 404389784, 505487230, 1010974460, 2021948920]

約数ペア:

[(1, 2021948920), (2, 1010974460), (4, 505487230), (5, 404389784), (8, 252743615), (10, 202194892), (20, 101097446), (40, 50548723), (191, 10586120), (382, 5293060), (383, 5279240), (691, 2926120), (764, 2646530), (766, 2639620), (955, 2117224), (1382, 1463060), (1528, 1323265), (1532, 1319810), (1910, 1058612), (1915, 1055848), (2764, 731530), (3064, 659905), (3455, 585224), (3820, 529306), (3830, 527924), (5528, 365765), (6910, 292612), (7640, 264653), (7660, 263962), (13820, 146306), (15320, 131981), (27640, 73153)]