81378324

素因数分解:

$2^2\times 3^3\times {\mathrm{23}}^1\times {\mathrm{181}}^2$

素因数の和:398

約数の個数: 72

約数和(自身を含む): 221376960

約数和(自身を除く): 139998636

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 27, 36, 46, 54, 69, 92, 108, 138, 181, 207, 276, 362, 414, 543, 621, 724, 828, 1086, 1242, 1629, 2172, 2484, 3258, 4163, 4887, 6516, 8326, 9774, 12489, 16652, 19548, 24978, 32761, 37467, 49956, 65522, 74934, 98283, 112401, 131044, 149868, 196566, 224802, 294849, 393132, 449604, 589698, 753503, 884547, 1179396, 1507006, 1769094, 2260509, 3014012, 3538188, 4521018, 6781527, 9042036, 13563054, 20344581, 27126108, 40689162, 81378324]

約数ペア:

[(1, 81378324), (2, 40689162), (3, 27126108), (4, 20344581), (6, 13563054), (9, 9042036), (12, 6781527), (18, 4521018), (23, 3538188), (27, 3014012), (36, 2260509), (46, 1769094), (54, 1507006), (69, 1179396), (92, 884547), (108, 753503), (138, 589698), (181, 449604), (207, 393132), (276, 294849), (362, 224802), (414, 196566), (543, 149868), (621, 131044), (724, 112401), (828, 98283), (1086, 74934), (1242, 65522), (1629, 49956), (2172, 37467), (2484, 32761), (3258, 24978), (4163, 19548), (4887, 16652), (6516, 12489), (8326, 9774)]