255136860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{128857}}^1$

素因数の和:128883

約数の個数: 72

約数和(自身を含む): 844277616

約数和(自身を除く): 589140756

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 128857, 257714, 386571, 515428, 644285, 773142, 1159713, 1288570, 1417427, 1546284, 1932855, 2319426, 2577140, 2834854, 3865710, 4252281, 4638852, 5669708, 5798565, 7087135, 7731420, 8504562, 11597130, 12756843, 14174270, 17009124, 21261405, 23194260, 25513686, 28348540, 42522810, 51027372, 63784215, 85045620, 127568430, 255136860]

約数ペア:

[(1, 255136860), (2, 127568430), (3, 85045620), (4, 63784215), (5, 51027372), (6, 42522810), (9, 28348540), (10, 25513686), (11, 23194260), (12, 21261405), (15, 17009124), (18, 14174270), (20, 12756843), (22, 11597130), (30, 8504562), (33, 7731420), (36, 7087135), (44, 5798565), (45, 5669708), (55, 4638852), (60, 4252281), (66, 3865710), (90, 2834854), (99, 2577140), (110, 2319426), (132, 1932855), (165, 1546284), (180, 1417427), (198, 1288570), (220, 1159713), (330, 773142), (396, 644285), (495, 515428), (660, 386571), (990, 257714), (1980, 128857)]