81321084

素因数分解:

$2^2\times 3^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{449}}^1$

素因数の和:521

約数の個数: 120

約数和(自身を含む): 234788400

約数和(自身を除く): 153467316

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 43, 52, 54, 78, 81, 86, 108, 117, 129, 156, 162, 172, 234, 258, 324, 351, 387, 449, 468, 516, 559, 702, 774, 898, 1053, 1118, 1161, 1347, 1404, 1548, 1677, 1796, 2106, 2236, 2322, 2694, 3354, 3483, 4041, 4212, 4644, 5031, 5388, 5837, 6708, 6966, 8082, 10062, 11674, 12123, 13932, 15093, 16164, 17511, 19307, 20124, 23348, 24246, 30186, 35022, 36369, 38614, 45279, 48492, 52533, 57921, 60372, 70044, 72738, 77228, 90558, 105066, 115842, 145476, 157599, 173763, 181116, 210132, 231684, 250991, 315198, 347526, 472797, 501982, 521289, 630396, 695052, 752973, 945594, 1003964, 1042578, 1505946, 1563867, 1891188, 2085156, 2258919, 3011892, 3127734, 4517838, 6255468, 6776757, 9035676, 13553514, 20330271, 27107028, 40660542, 81321084]

約数ペア:

[(1, 81321084), (2, 40660542), (3, 27107028), (4, 20330271), (6, 13553514), (9, 9035676), (12, 6776757), (13, 6255468), (18, 4517838), (26, 3127734), (27, 3011892), (36, 2258919), (39, 2085156), (43, 1891188), (52, 1563867), (54, 1505946), (78, 1042578), (81, 1003964), (86, 945594), (108, 752973), (117, 695052), (129, 630396), (156, 521289), (162, 501982), (172, 472797), (234, 347526), (258, 315198), (324, 250991), (351, 231684), (387, 210132), (449, 181116), (468, 173763), (516, 157599), (559, 145476), (702, 115842), (774, 105066), (898, 90558), (1053, 77228), (1118, 72738), (1161, 70044), (1347, 60372), (1404, 57921), (1548, 52533), (1677, 48492), (1796, 45279), (2106, 38614), (2236, 36369), (2322, 35022), (2694, 30186), (3354, 24246), (3483, 23348), (4041, 20124), (4212, 19307), (4644, 17511), (5031, 16164), (5388, 15093), (5837, 13932), (6708, 12123), (6966, 11674), (8082, 10062)]