81502928

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{2819}}^1$

素因数の和:2979

約数の個数: 40

約数和(自身を含む): 171343200

約数和(自身を除く): 89840272

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 139, 208, 278, 556, 1112, 1807, 2224, 2819, 3614, 5638, 7228, 11276, 14456, 22552, 28912, 36647, 45104, 73294, 146588, 293176, 391841, 586352, 783682, 1567364, 3134728, 5093933, 6269456, 10187866, 20375732, 40751464, 81502928]

約数ペア:

[(1, 81502928), (2, 40751464), (4, 20375732), (8, 10187866), (13, 6269456), (16, 5093933), (26, 3134728), (52, 1567364), (104, 783682), (139, 586352), (208, 391841), (278, 293176), (556, 146588), (1112, 73294), (1807, 45104), (2224, 36647), (2819, 28912), (3614, 22552), (5638, 14456), (7228, 11276)]