39695620

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:388

約数の個数: 48

約数和(自身を含む): 85377600

約数和(自身を除く): 45681980

約数列:

[1, 2, 4, 5, 10, 20, 109, 131, 139, 218, 262, 278, 436, 524, 545, 556, 655, 695, 1090, 1310, 1390, 2180, 2620, 2780, 14279, 15151, 18209, 28558, 30302, 36418, 57116, 60604, 71395, 72836, 75755, 91045, 142790, 151510, 182090, 285580, 303020, 364180, 1984781, 3969562, 7939124, 9923905, 19847810, 39695620]

約数ペア:

[(1, 39695620), (2, 19847810), (4, 9923905), (5, 7939124), (10, 3969562), (20, 1984781), (109, 364180), (131, 303020), (139, 285580), (218, 182090), (262, 151510), (278, 142790), (436, 91045), (524, 75755), (545, 72836), (556, 71395), (655, 60604), (695, 57116), (1090, 36418), (1310, 30302), (1390, 28558), (2180, 18209), (2620, 15151), (2780, 14279)]