399729888

素因数分解:

$2^5\times 3^2\times {\mathrm{79}}^1\times {\mathrm{17569}}^1$

素因数の和:17664

約数の個数: 72

約数和(自身を含む): 1151186400

約数和(自身を除く): 751456512

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 79, 96, 144, 158, 237, 288, 316, 474, 632, 711, 948, 1264, 1422, 1896, 2528, 2844, 3792, 5688, 7584, 11376, 17569, 22752, 35138, 52707, 70276, 105414, 140552, 158121, 210828, 281104, 316242, 421656, 562208, 632484, 843312, 1264968, 1387951, 1686624, 2529936, 2775902, 4163853, 5059872, 5551804, 8327706, 11103608, 12491559, 16655412, 22207216, 24983118, 33310824, 44414432, 49966236, 66621648, 99932472, 133243296, 199864944, 399729888]

約数ペア:

[(1, 399729888), (2, 199864944), (3, 133243296), (4, 99932472), (6, 66621648), (8, 49966236), (9, 44414432), (12, 33310824), (16, 24983118), (18, 22207216), (24, 16655412), (32, 12491559), (36, 11103608), (48, 8327706), (72, 5551804), (79, 5059872), (96, 4163853), (144, 2775902), (158, 2529936), (237, 1686624), (288, 1387951), (316, 1264968), (474, 843312), (632, 632484), (711, 562208), (948, 421656), (1264, 316242), (1422, 281104), (1896, 210828), (2528, 158121), (2844, 140552), (3792, 105414), (5688, 70276), (7584, 52707), (11376, 35138), (17569, 22752)]