81309564

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{307}}^1\times {\mathrm{1051}}^1$

素因数の和:1375

約数の個数: 72

約数和(自身を含む): 235883648

約数和(自身を除く): 154574084

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 307, 614, 921, 1051, 1228, 1842, 2102, 2149, 2763, 3153, 3684, 4204, 4298, 5526, 6306, 6447, 7357, 8596, 9459, 11052, 12612, 12894, 14714, 18918, 19341, 22071, 25788, 29428, 37836, 38682, 44142, 66213, 77364, 88284, 132426, 264852, 322657, 645314, 967971, 1290628, 1935942, 2258599, 2903913, 3871884, 4517198, 5807826, 6775797, 9034396, 11615652, 13551594, 20327391, 27103188, 40654782, 81309564]

約数ペア:

[(1, 81309564), (2, 40654782), (3, 27103188), (4, 20327391), (6, 13551594), (7, 11615652), (9, 9034396), (12, 6775797), (14, 5807826), (18, 4517198), (21, 3871884), (28, 2903913), (36, 2258599), (42, 1935942), (63, 1290628), (84, 967971), (126, 645314), (252, 322657), (307, 264852), (614, 132426), (921, 88284), (1051, 77364), (1228, 66213), (1842, 44142), (2102, 38682), (2149, 37836), (2763, 29428), (3153, 25788), (3684, 22071), (4204, 19341), (4298, 18918), (5526, 14714), (6306, 12894), (6447, 12612), (7357, 11052), (8596, 9459)]