13143620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{421}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 31761408

約数和(自身を除く): 18617788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 223, 421, 446, 842, 892, 1115, 1561, 1684, 2105, 2230, 2947, 3122, 4210, 4460, 5894, 6244, 7805, 8420, 11788, 14735, 15610, 29470, 31220, 58940, 93883, 187766, 375532, 469415, 657181, 938830, 1314362, 1877660, 2628724, 3285905, 6571810, 13143620]

約数ペア:

[(1, 13143620), (2, 6571810), (4, 3285905), (5, 2628724), (7, 1877660), (10, 1314362), (14, 938830), (20, 657181), (28, 469415), (35, 375532), (70, 187766), (140, 93883), (223, 58940), (421, 31220), (446, 29470), (842, 15610), (892, 14735), (1115, 11788), (1561, 8420), (1684, 7805), (2105, 6244), (2230, 5894), (2947, 4460), (3122, 4210)]