81281844

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{7867}}^1$

素因数の和:7925

約数の個数: 72

約数和(自身を含む): 240571968

約数和(自身を除く): 159290124

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 41, 42, 63, 82, 84, 123, 126, 164, 246, 252, 287, 369, 492, 574, 738, 861, 1148, 1476, 1722, 2583, 3444, 5166, 7867, 10332, 15734, 23601, 31468, 47202, 55069, 70803, 94404, 110138, 141606, 165207, 220276, 283212, 322547, 330414, 495621, 645094, 660828, 967641, 991242, 1290188, 1935282, 1982484, 2257829, 2902923, 3870564, 4515658, 5805846, 6773487, 9031316, 11611692, 13546974, 20320461, 27093948, 40640922, 81281844]

約数ペア:

[(1, 81281844), (2, 40640922), (3, 27093948), (4, 20320461), (6, 13546974), (7, 11611692), (9, 9031316), (12, 6773487), (14, 5805846), (18, 4515658), (21, 3870564), (28, 2902923), (36, 2257829), (41, 1982484), (42, 1935282), (63, 1290188), (82, 991242), (84, 967641), (123, 660828), (126, 645094), (164, 495621), (246, 330414), (252, 322547), (287, 283212), (369, 220276), (492, 165207), (574, 141606), (738, 110138), (861, 94404), (1148, 70803), (1476, 55069), (1722, 47202), (2583, 31468), (3444, 23601), (5166, 15734), (7867, 10332)]