280314220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{19937}}^1$

素因数の和:20002

約数の個数: 48

約数和(自身を含む): 636420960

約数和(自身を除く): 356106740

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 74, 76, 95, 148, 185, 190, 370, 380, 703, 740, 1406, 2812, 3515, 7030, 14060, 19937, 39874, 79748, 99685, 199370, 378803, 398740, 737669, 757606, 1475338, 1515212, 1894015, 2950676, 3688345, 3788030, 7376690, 7576060, 14015711, 14753380, 28031422, 56062844, 70078555, 140157110, 280314220]

約数ペア:

[(1, 280314220), (2, 140157110), (4, 70078555), (5, 56062844), (10, 28031422), (19, 14753380), (20, 14015711), (37, 7576060), (38, 7376690), (74, 3788030), (76, 3688345), (95, 2950676), (148, 1894015), (185, 1515212), (190, 1475338), (370, 757606), (380, 737669), (703, 398740), (740, 378803), (1406, 199370), (2812, 99685), (3515, 79748), (7030, 39874), (14060, 19937)]