138940128

素因数分解:

$2^5\times 3^2\times {\mathrm{613}}^1\times {\mathrm{787}}^1$

素因数の和:1416

約数の個数: 72

約数和(自身を含む): 396258408

約数和(自身を除く): 257318280

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 288, 613, 787, 1226, 1574, 1839, 2361, 2452, 3148, 3678, 4722, 4904, 5517, 6296, 7083, 7356, 9444, 9808, 11034, 12592, 14166, 14712, 18888, 19616, 22068, 25184, 28332, 29424, 37776, 44136, 56664, 58848, 75552, 88272, 113328, 176544, 226656, 482431, 964862, 1447293, 1929724, 2894586, 3859448, 4341879, 5789172, 7718896, 8683758, 11578344, 15437792, 17367516, 23156688, 34735032, 46313376, 69470064, 138940128]

約数ペア:

[(1, 138940128), (2, 69470064), (3, 46313376), (4, 34735032), (6, 23156688), (8, 17367516), (9, 15437792), (12, 11578344), (16, 8683758), (18, 7718896), (24, 5789172), (32, 4341879), (36, 3859448), (48, 2894586), (72, 1929724), (96, 1447293), (144, 964862), (288, 482431), (613, 226656), (787, 176544), (1226, 113328), (1574, 88272), (1839, 75552), (2361, 58848), (2452, 56664), (3148, 44136), (3678, 37776), (4722, 29424), (4904, 28332), (5517, 25184), (6296, 22068), (7083, 19616), (7356, 18888), (9444, 14712), (9808, 14166), (11034, 12592)]