54820780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{3877}}^1$

素因数の和:3994

約数の個数: 48

約数和(自身を含む): 132906816

約数和(自身を除く): 78086036

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 101, 140, 202, 404, 505, 707, 1010, 1414, 2020, 2828, 3535, 3877, 7070, 7754, 14140, 15508, 19385, 27139, 38770, 54278, 77540, 108556, 135695, 271390, 391577, 542780, 783154, 1566308, 1957885, 2741039, 3915770, 5482078, 7831540, 10964156, 13705195, 27410390, 54820780]

約数ペア:

[(1, 54820780), (2, 27410390), (4, 13705195), (5, 10964156), (7, 7831540), (10, 5482078), (14, 3915770), (20, 2741039), (28, 1957885), (35, 1566308), (70, 783154), (101, 542780), (140, 391577), (202, 271390), (404, 135695), (505, 108556), (707, 77540), (1010, 54278), (1414, 38770), (2020, 27139), (2828, 19385), (3535, 15508), (3877, 14140), (7070, 7754)]