28277465

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:257

約数の個数: 32

約数和(自身を含む): 37497600

約数和(自身を除く): 9220135

約数列:

[1, 5, 23, 29, 61, 115, 139, 145, 305, 667, 695, 1403, 1769, 3197, 3335, 4031, 7015, 8479, 8845, 15985, 20155, 40687, 42395, 92713, 195017, 203435, 245891, 463565, 975085, 1229455, 5655493, 28277465]

約数ペア:

[(1, 28277465), (5, 5655493), (23, 1229455), (29, 975085), (61, 463565), (115, 245891), (139, 203435), (145, 195017), (305, 92713), (667, 42395), (695, 40687), (1403, 20155), (1769, 15985), (3197, 8845), (3335, 8479), (4031, 7015)]