19655440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{35099}}^1$

素因数の和:35119

約数の個数: 40

約数和(自身を含む): 52228800

約数和(自身を除く): 32573360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 35099, 70198, 140396, 175495, 245693, 280792, 350990, 491386, 561584, 701980, 982772, 1228465, 1403960, 1965544, 2456930, 2807920, 3931088, 4913860, 9827720, 19655440]

約数ペア:

[(1, 19655440), (2, 9827720), (4, 4913860), (5, 3931088), (7, 2807920), (8, 2456930), (10, 1965544), (14, 1403960), (16, 1228465), (20, 982772), (28, 701980), (35, 561584), (40, 491386), (56, 350990), (70, 280792), (80, 245693), (112, 175495), (140, 140396), (280, 70198), (560, 35099)]