28123928

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{8233}}^1$

素因数の和:8307

約数の個数: 32

約数和(自身を含む): 61260960

約数和(自身を除く): 33137032

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 122, 244, 427, 488, 854, 1708, 3416, 8233, 16466, 32932, 57631, 65864, 115262, 230524, 461048, 502213, 1004426, 2008852, 3515491, 4017704, 7030982, 14061964, 28123928]

約数ペア:

[(1, 28123928), (2, 14061964), (4, 7030982), (7, 4017704), (8, 3515491), (14, 2008852), (28, 1004426), (56, 502213), (61, 461048), (122, 230524), (244, 115262), (427, 65864), (488, 57631), (854, 32932), (1708, 16466), (3416, 8233)]