81630216

素因数分解:

$2^3\times 3^2\times {\mathrm{421}}^1\times {\mathrm{2693}}^1$

素因数の和:3126

約数の個数: 48

約数和(自身を含む): 221689260

約数和(自身を除く): 140059044

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 421, 842, 1263, 1684, 2526, 2693, 3368, 3789, 5052, 5386, 7578, 8079, 10104, 10772, 15156, 16158, 21544, 24237, 30312, 32316, 48474, 64632, 96948, 193896, 1133753, 2267506, 3401259, 4535012, 6802518, 9070024, 10203777, 13605036, 20407554, 27210072, 40815108, 81630216]

約数ペア:

[(1, 81630216), (2, 40815108), (3, 27210072), (4, 20407554), (6, 13605036), (8, 10203777), (9, 9070024), (12, 6802518), (18, 4535012), (24, 3401259), (36, 2267506), (72, 1133753), (421, 193896), (842, 96948), (1263, 64632), (1684, 48474), (2526, 32316), (2693, 30312), (3368, 24237), (3789, 21544), (5052, 16158), (5386, 15156), (7578, 10772), (8079, 10104)]