31080790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{347}}^1$

素因数の和:433

約数の個数: 48

約数和(自身を含む): 61900848

約数和(自身を除く): 30820058

約数列:

[1, 2, 5, 10, 13, 26, 53, 65, 106, 130, 169, 265, 338, 347, 530, 689, 694, 845, 1378, 1690, 1735, 3445, 3470, 4511, 6890, 8957, 9022, 17914, 18391, 22555, 36782, 44785, 45110, 58643, 89570, 91955, 117286, 183910, 239083, 293215, 478166, 586430, 1195415, 2390830, 3108079, 6216158, 15540395, 31080790]

約数ペア:

[(1, 31080790), (2, 15540395), (5, 6216158), (10, 3108079), (13, 2390830), (26, 1195415), (53, 586430), (65, 478166), (106, 293215), (130, 239083), (169, 183910), (265, 117286), (338, 91955), (347, 89570), (530, 58643), (689, 45110), (694, 44785), (845, 36782), (1378, 22555), (1690, 18391), (1735, 17914), (3445, 9022), (3470, 8957), (4511, 6890)]