81658332

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{251}}^1\times {\mathrm{1291}}^1$

素因数の和:1559

約数の個数: 72

約数和(自身を含む): 237025152

約数和(自身を除く): 155366820

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 251, 252, 502, 753, 1004, 1291, 1506, 1757, 2259, 2582, 3012, 3514, 3873, 4518, 5164, 5271, 7028, 7746, 9036, 9037, 10542, 11619, 15492, 15813, 18074, 21084, 23238, 27111, 31626, 36148, 46476, 54222, 63252, 81333, 108444, 162666, 324041, 325332, 648082, 972123, 1296164, 1944246, 2268287, 2916369, 3888492, 4536574, 5832738, 6804861, 9073148, 11665476, 13609722, 20414583, 27219444, 40829166, 81658332]

約数ペア:

[(1, 81658332), (2, 40829166), (3, 27219444), (4, 20414583), (6, 13609722), (7, 11665476), (9, 9073148), (12, 6804861), (14, 5832738), (18, 4536574), (21, 3888492), (28, 2916369), (36, 2268287), (42, 1944246), (63, 1296164), (84, 972123), (126, 648082), (251, 325332), (252, 324041), (502, 162666), (753, 108444), (1004, 81333), (1291, 63252), (1506, 54222), (1757, 46476), (2259, 36148), (2582, 31626), (3012, 27111), (3514, 23238), (3873, 21084), (4518, 18074), (5164, 15813), (5271, 15492), (7028, 11619), (7746, 10542), (9036, 9037)]