81403416

素因数分解:

$2^3\times 3^2\times {\mathrm{569}}^1\times {\mathrm{1987}}^1$

素因数の和:2568

約数の個数: 48

約数和(自身を含む): 220966200

約数和(自身を除く): 139562784

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 569, 1138, 1707, 1987, 2276, 3414, 3974, 4552, 5121, 5961, 6828, 7948, 10242, 11922, 13656, 15896, 17883, 20484, 23844, 35766, 40968, 47688, 71532, 143064, 1130603, 2261206, 3391809, 4522412, 6783618, 9044824, 10175427, 13567236, 20350854, 27134472, 40701708, 81403416]

約数ペア:

[(1, 81403416), (2, 40701708), (3, 27134472), (4, 20350854), (6, 13567236), (8, 10175427), (9, 9044824), (12, 6783618), (18, 4522412), (24, 3391809), (36, 2261206), (72, 1130603), (569, 143064), (1138, 71532), (1707, 47688), (1987, 40968), (2276, 35766), (3414, 23844), (3974, 20484), (4552, 17883), (5121, 15896), (5961, 13656), (6828, 11922), (7948, 10242)]