81200718

素因数分解:

$2^1\times 3^4\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:124

約数の個数: 160

約数和(自身を含む): 211875840

約数和(自身を除く): 130675122

約数列:

[1, 2, 3, 6, 9, 18, 19, 23, 27, 31, 37, 38, 46, 54, 57, 62, 69, 74, 81, 93, 111, 114, 138, 162, 171, 186, 207, 222, 279, 333, 342, 414, 437, 513, 558, 589, 621, 666, 703, 713, 837, 851, 874, 999, 1026, 1147, 1178, 1242, 1311, 1406, 1426, 1539, 1674, 1702, 1767, 1863, 1998, 2109, 2139, 2294, 2511, 2553, 2622, 2997, 3078, 3441, 3534, 3726, 3933, 4218, 4278, 5022, 5106, 5301, 5994, 6327, 6417, 6882, 7659, 7866, 10323, 10602, 11799, 12654, 12834, 13547, 15318, 15903, 16169, 18981, 19251, 20646, 21793, 22977, 23598, 26381, 27094, 30969, 31806, 32338, 35397, 37962, 38502, 40641, 43586, 45954, 47709, 48507, 52762, 56943, 57753, 61938, 65379, 68931, 70794, 79143, 81282, 92907, 95418, 97014, 113886, 115506, 121923, 130758, 137862, 145521, 158286, 185814, 196137, 237429, 243846, 291042, 365769, 392274, 436563, 474858, 501239, 588411, 712287, 731538, 873126, 1002478, 1097307, 1176822, 1309689, 1424574, 1503717, 1765233, 2136861, 2194614, 2619378, 3007434, 3530466, 4273722, 4511151, 9022302, 13533453, 27066906, 40600359, 81200718]

約数ペア:

[(1, 81200718), (2, 40600359), (3, 27066906), (6, 13533453), (9, 9022302), (18, 4511151), (19, 4273722), (23, 3530466), (27, 3007434), (31, 2619378), (37, 2194614), (38, 2136861), (46, 1765233), (54, 1503717), (57, 1424574), (62, 1309689), (69, 1176822), (74, 1097307), (81, 1002478), (93, 873126), (111, 731538), (114, 712287), (138, 588411), (162, 501239), (171, 474858), (186, 436563), (207, 392274), (222, 365769), (279, 291042), (333, 243846), (342, 237429), (414, 196137), (437, 185814), (513, 158286), (558, 145521), (589, 137862), (621, 130758), (666, 121923), (703, 115506), (713, 113886), (837, 97014), (851, 95418), (874, 92907), (999, 81282), (1026, 79143), (1147, 70794), (1178, 68931), (1242, 65379), (1311, 61938), (1406, 57753), (1426, 56943), (1539, 52762), (1674, 48507), (1702, 47709), (1767, 45954), (1863, 43586), (1998, 40641), (2109, 38502), (2139, 37962), (2294, 35397), (2511, 32338), (2553, 31806), (2622, 30969), (2997, 27094), (3078, 26381), (3441, 23598), (3534, 22977), (3726, 21793), (3933, 20646), (4218, 19251), (4278, 18981), (5022, 16169), (5106, 15903), (5301, 15318), (5994, 13547), (6327, 12834), (6417, 12654), (6882, 11799), (7659, 10602), (7866, 10323)]