28268890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{2153}}^1$

素因数の和:2274

約数の個数: 32

約数和(自身を含む): 55366416

約数和(自身を除く): 27097526

約数列:

[1, 2, 5, 10, 13, 26, 65, 101, 130, 202, 505, 1010, 1313, 2153, 2626, 4306, 6565, 10765, 13130, 21530, 27989, 55978, 139945, 217453, 279890, 434906, 1087265, 2174530, 2826889, 5653778, 14134445, 28268890]

約数ペア:

[(1, 28268890), (2, 14134445), (5, 5653778), (10, 2826889), (13, 2174530), (26, 1087265), (65, 434906), (101, 279890), (130, 217453), (202, 139945), (505, 55978), (1010, 27989), (1313, 21530), (2153, 13130), (2626, 10765), (4306, 6565)]