280168574

素因数分解:

$2^1\times 7^3\times {\mathrm{149}}^1\times {\mathrm{2741}}^1$

素因数の和:2913

約数の個数: 32

約数和(自身を含む): 493560000

約数和(自身を除く): 213391426

約数列:

[1, 2, 7, 14, 49, 98, 149, 298, 343, 686, 1043, 2086, 2741, 5482, 7301, 14602, 19187, 38374, 51107, 102214, 134309, 268618, 408409, 816818, 940163, 1880326, 2858863, 5717726, 20012041, 40024082, 140084287, 280168574]

約数ペア:

[(1, 280168574), (2, 140084287), (7, 40024082), (14, 20012041), (49, 5717726), (98, 2858863), (149, 1880326), (298, 940163), (343, 816818), (686, 408409), (1043, 268618), (2086, 134309), (2741, 102214), (5482, 51107), (7301, 38374), (14602, 19187)]