1380680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{4931}}^1$

素因数の和:4949

約数の個数: 32

約数和(自身を含む): 3551040

約数和(自身を除く): 2170360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 4931, 9862, 19724, 24655, 34517, 39448, 49310, 69034, 98620, 138068, 172585, 197240, 276136, 345170, 690340, 1380680]

約数ペア:

[(1, 1380680), (2, 690340), (4, 345170), (5, 276136), (7, 197240), (8, 172585), (10, 138068), (14, 98620), (20, 69034), (28, 49310), (35, 39448), (40, 34517), (56, 24655), (70, 19724), (140, 9862), (280, 4931)]