1780451620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{203713}}^1$

素因数の和:203764

約数の個数: 48

約数和(自身を含む): 4106874240

約数和(自身を除く): 2326422620

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 46, 76, 92, 95, 115, 190, 230, 380, 437, 460, 874, 1748, 2185, 4370, 8740, 203713, 407426, 814852, 1018565, 2037130, 3870547, 4074260, 4685399, 7741094, 9370798, 15482188, 18741596, 19352735, 23426995, 38705470, 46853990, 77410940, 89022581, 93707980, 178045162, 356090324, 445112905, 890225810, 1780451620]

約数ペア:

[(1, 1780451620), (2, 890225810), (4, 445112905), (5, 356090324), (10, 178045162), (19, 93707980), (20, 89022581), (23, 77410940), (38, 46853990), (46, 38705470), (76, 23426995), (92, 19352735), (95, 18741596), (115, 15482188), (190, 9370798), (230, 7741094), (380, 4685399), (437, 4074260), (460, 3870547), (874, 2037130), (1748, 1018565), (2185, 814852), (4370, 407426), (8740, 203713)]