28678999

素因数分解:

${\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:175

約数の個数: 32

約数和(自身を含む): 34099200

約数和(自身を除く): 5420201

約数列:

[1, 19, 23, 29, 31, 73, 437, 551, 589, 667, 713, 899, 1387, 1679, 2117, 2263, 12673, 13547, 17081, 20677, 31901, 40223, 42997, 48691, 52049, 65627, 392863, 925129, 988931, 1246913, 1509421, 28678999]

約数ペア:

[(1, 28678999), (19, 1509421), (23, 1246913), (29, 988931), (31, 925129), (73, 392863), (437, 65627), (551, 52049), (589, 48691), (667, 42997), (713, 40223), (899, 31901), (1387, 20677), (1679, 17081), (2117, 13547), (2263, 12673)]