3978640

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1213}}^1$

素因数の和:1267

約数の個数: 40

約数和(自身を含む): 9483768

約数和(自身を除く): 5505128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1213, 1640, 2426, 3280, 4852, 6065, 9704, 12130, 19408, 24260, 48520, 49733, 97040, 99466, 198932, 248665, 397864, 497330, 795728, 994660, 1989320, 3978640]

約数ペア:

[(1, 3978640), (2, 1989320), (4, 994660), (5, 795728), (8, 497330), (10, 397864), (16, 248665), (20, 198932), (40, 99466), (41, 97040), (80, 49733), (82, 48520), (164, 24260), (205, 19408), (328, 12130), (410, 9704), (656, 6065), (820, 4852), (1213, 3280), (1640, 2426)]