685400

素因数分解:

$2^3\times 5^2\times {\mathrm{23}}^1\times {\mathrm{149}}^1$

素因数の和:188

約数の個数: 48

約数和(自身を含む): 1674000

約数和(自身を除く): 988600

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 92, 100, 115, 149, 184, 200, 230, 298, 460, 575, 596, 745, 920, 1150, 1192, 1490, 2300, 2980, 3427, 3725, 4600, 5960, 6854, 7450, 13708, 14900, 17135, 27416, 29800, 34270, 68540, 85675, 137080, 171350, 342700, 685400]

約数ペア:

[(1, 685400), (2, 342700), (4, 171350), (5, 137080), (8, 85675), (10, 68540), (20, 34270), (23, 29800), (25, 27416), (40, 17135), (46, 14900), (50, 13708), (92, 7450), (100, 6854), (115, 5960), (149, 4600), (184, 3725), (200, 3427), (230, 2980), (298, 2300), (460, 1490), (575, 1192), (596, 1150), (745, 920)]