81502564

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{3851}}^1$

素因数の和:3916

約数の個数: 48

約数和(自身を含む): 172138176

約数和(自身を除く): 90635612

約数列:

[1, 2, 4, 11, 13, 22, 26, 37, 44, 52, 74, 143, 148, 286, 407, 481, 572, 814, 962, 1628, 1924, 3851, 5291, 7702, 10582, 15404, 21164, 42361, 50063, 84722, 100126, 142487, 169444, 200252, 284974, 550693, 569948, 1101386, 1567357, 1852331, 2202772, 3134714, 3704662, 6269428, 7409324, 20375641, 40751282, 81502564]

約数ペア:

[(1, 81502564), (2, 40751282), (4, 20375641), (11, 7409324), (13, 6269428), (22, 3704662), (26, 3134714), (37, 2202772), (44, 1852331), (52, 1567357), (74, 1101386), (143, 569948), (148, 550693), (286, 284974), (407, 200252), (481, 169444), (572, 142487), (814, 100126), (962, 84722), (1628, 50063), (1924, 42361), (3851, 21164), (5291, 15404), (7702, 10582)]