19254640

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{2383}}^1$

素因数の和:2497

約数の個数: 40

約数和(自身を含む): 45229248

約数和(自身を除く): 25974608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 2383, 4040, 4766, 8080, 9532, 11915, 19064, 23830, 38128, 47660, 95320, 190640, 240683, 481366, 962732, 1203415, 1925464, 2406830, 3850928, 4813660, 9627320, 19254640]

約数ペア:

[(1, 19254640), (2, 9627320), (4, 4813660), (5, 3850928), (8, 2406830), (10, 1925464), (16, 1203415), (20, 962732), (40, 481366), (80, 240683), (101, 190640), (202, 95320), (404, 47660), (505, 38128), (808, 23830), (1010, 19064), (1616, 11915), (2020, 9532), (2383, 8080), (4040, 4766)]