399831372

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{173}}^1\times {\mathrm{1493}}^1$

素因数の和:1719

約数の個数: 72

約数和(自身を含む): 1040863824

約数和(自身を除く): 641032452

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 173, 258, 346, 387, 516, 519, 692, 774, 1038, 1493, 1548, 1557, 2076, 2986, 3114, 4479, 5972, 6228, 7439, 8958, 13437, 14878, 17916, 22317, 26874, 29756, 44634, 53748, 64199, 66951, 89268, 128398, 133902, 192597, 256796, 258289, 267804, 385194, 516578, 577791, 770388, 774867, 1033156, 1155582, 1549734, 2311164, 2324601, 3099468, 4649202, 9298404, 11106427, 22212854, 33319281, 44425708, 66638562, 99957843, 133277124, 199915686, 399831372]

約数ペア:

[(1, 399831372), (2, 199915686), (3, 133277124), (4, 99957843), (6, 66638562), (9, 44425708), (12, 33319281), (18, 22212854), (36, 11106427), (43, 9298404), (86, 4649202), (129, 3099468), (172, 2324601), (173, 2311164), (258, 1549734), (346, 1155582), (387, 1033156), (516, 774867), (519, 770388), (692, 577791), (774, 516578), (1038, 385194), (1493, 267804), (1548, 258289), (1557, 256796), (2076, 192597), (2986, 133902), (3114, 128398), (4479, 89268), (5972, 66951), (6228, 64199), (7439, 53748), (8958, 44634), (13437, 29756), (14878, 26874), (17916, 22317)]