142480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1$

素因数の和:163

約数の個数: 40

約数和(自身を含む): 359352

約数和(自身を除く): 216872

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 137, 208, 260, 274, 520, 548, 685, 1040, 1096, 1370, 1781, 2192, 2740, 3562, 5480, 7124, 8905, 10960, 14248, 17810, 28496, 35620, 71240, 142480]

約数ペア:

[(1, 142480), (2, 71240), (4, 35620), (5, 28496), (8, 17810), (10, 14248), (13, 10960), (16, 8905), (20, 7124), (26, 5480), (40, 3562), (52, 2740), (65, 2192), (80, 1781), (104, 1370), (130, 1096), (137, 1040), (208, 685), (260, 548), (274, 520)]