28455420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{67751}}^1$

素因数の和:67770

約数の個数: 48

約数和(自身を含む): 91058688

約数和(自身を除く): 62603268

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 67751, 135502, 203253, 271004, 338755, 406506, 474257, 677510, 813012, 948514, 1016265, 1355020, 1422771, 1897028, 2032530, 2371285, 2845542, 4065060, 4742570, 5691084, 7113855, 9485140, 14227710, 28455420]

約数ペア:

[(1, 28455420), (2, 14227710), (3, 9485140), (4, 7113855), (5, 5691084), (6, 4742570), (7, 4065060), (10, 2845542), (12, 2371285), (14, 2032530), (15, 1897028), (20, 1422771), (21, 1355020), (28, 1016265), (30, 948514), (35, 813012), (42, 677510), (60, 474257), (70, 406506), (84, 338755), (105, 271004), (140, 203253), (210, 135502), (420, 67751)]