80786800

素因数分解:

$2^4\times 5^2\times {\mathrm{139}}^1\times {\mathrm{1453}}^1$

素因数の和:1610

約数の個数: 60

約数和(自身を含む): 195621160

約数和(自身を除く): 114834360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 139, 200, 278, 400, 556, 695, 1112, 1390, 1453, 2224, 2780, 2906, 3475, 5560, 5812, 6950, 7265, 11120, 11624, 13900, 14530, 23248, 27800, 29060, 36325, 55600, 58120, 72650, 116240, 145300, 201967, 290600, 403934, 581200, 807868, 1009835, 1615736, 2019670, 3231472, 4039340, 5049175, 8078680, 10098350, 16157360, 20196700, 40393400, 80786800]

約数ペア:

[(1, 80786800), (2, 40393400), (4, 20196700), (5, 16157360), (8, 10098350), (10, 8078680), (16, 5049175), (20, 4039340), (25, 3231472), (40, 2019670), (50, 1615736), (80, 1009835), (100, 807868), (139, 581200), (200, 403934), (278, 290600), (400, 201967), (556, 145300), (695, 116240), (1112, 72650), (1390, 58120), (1453, 55600), (2224, 36325), (2780, 29060), (2906, 27800), (3475, 23248), (5560, 14530), (5812, 13900), (6950, 11624), (7265, 11120)]