80842400

素因数分解:

$2^5\times 5^2\times {\mathrm{139}}^1\times {\mathrm{727}}^1$

素因数の和:886

約数の個数: 72

約数和(自身を含む): 199049760

約数和(自身を除く): 118207360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 139, 160, 200, 278, 400, 556, 695, 727, 800, 1112, 1390, 1454, 2224, 2780, 2908, 3475, 3635, 4448, 5560, 5816, 6950, 7270, 11120, 11632, 13900, 14540, 18175, 22240, 23264, 27800, 29080, 36350, 55600, 58160, 72700, 101053, 111200, 116320, 145400, 202106, 290800, 404212, 505265, 581600, 808424, 1010530, 1616848, 2021060, 2526325, 3233696, 4042120, 5052650, 8084240, 10105300, 16168480, 20210600, 40421200, 80842400]

約数ペア:

[(1, 80842400), (2, 40421200), (4, 20210600), (5, 16168480), (8, 10105300), (10, 8084240), (16, 5052650), (20, 4042120), (25, 3233696), (32, 2526325), (40, 2021060), (50, 1616848), (80, 1010530), (100, 808424), (139, 581600), (160, 505265), (200, 404212), (278, 290800), (400, 202106), (556, 145400), (695, 116320), (727, 111200), (800, 101053), (1112, 72700), (1390, 58160), (1454, 55600), (2224, 36350), (2780, 29080), (2908, 27800), (3475, 23264), (3635, 22240), (4448, 18175), (5560, 14540), (5816, 13900), (6950, 11632), (7270, 11120)]