31164740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1291}}^1$

素因数の和:1388

約数の個数: 48

約数和(自身を含む): 70326144

約数和(自身を除く): 39161404

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 71, 85, 142, 170, 284, 340, 355, 710, 1207, 1291, 1420, 2414, 2582, 4828, 5164, 6035, 6455, 12070, 12910, 21947, 24140, 25820, 43894, 87788, 91661, 109735, 183322, 219470, 366644, 438940, 458305, 916610, 1558237, 1833220, 3116474, 6232948, 7791185, 15582370, 31164740]

約数ペア:

[(1, 31164740), (2, 15582370), (4, 7791185), (5, 6232948), (10, 3116474), (17, 1833220), (20, 1558237), (34, 916610), (68, 458305), (71, 438940), (85, 366644), (142, 219470), (170, 183322), (284, 109735), (340, 91661), (355, 87788), (710, 43894), (1207, 25820), (1291, 24140), (1420, 21947), (2414, 12910), (2582, 12070), (4828, 6455), (5164, 6035)]