31945660

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 68856480

約数和(自身を除く): 36910820

約数列:

[1, 2, 4, 5, 10, 20, 89, 131, 137, 178, 262, 274, 356, 445, 524, 548, 655, 685, 890, 1310, 1370, 1780, 2620, 2740, 11659, 12193, 17947, 23318, 24386, 35894, 46636, 48772, 58295, 60965, 71788, 89735, 116590, 121930, 179470, 233180, 243860, 358940, 1597283, 3194566, 6389132, 7986415, 15972830, 31945660]

約数ペア:

[(1, 31945660), (2, 15972830), (4, 7986415), (5, 6389132), (10, 3194566), (20, 1597283), (89, 358940), (131, 243860), (137, 233180), (178, 179470), (262, 121930), (274, 116590), (356, 89735), (445, 71788), (524, 60965), (548, 58295), (655, 48772), (685, 46636), (890, 35894), (1310, 24386), (1370, 23318), (1780, 17947), (2620, 12193), (2740, 11659)]