1298721680

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{705827}}^1$

素因数の和:705863

約数の個数: 40

約数和(自身を含む): 3150816192

約数和(自身を除く): 1852094512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 705827, 1411654, 2823308, 3529135, 5646616, 7058270, 11293232, 14116540, 16234021, 28233080, 32468042, 56466160, 64936084, 81170105, 129872168, 162340210, 259744336, 324680420, 649360840, 1298721680]

約数ペア:

[(1, 1298721680), (2, 649360840), (4, 324680420), (5, 259744336), (8, 162340210), (10, 129872168), (16, 81170105), (20, 64936084), (23, 56466160), (40, 32468042), (46, 28233080), (80, 16234021), (92, 14116540), (115, 11293232), (184, 7058270), (230, 5646616), (368, 3529135), (460, 2823308), (920, 1411654), (1840, 705827)]