281499990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{407971}}^1$

素因数の和:408004

約数の個数: 32

約数和(自身を含む): 704975616

約数和(自身を除く): 423475626

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690, 407971, 815942, 1223913, 2039855, 2447826, 4079710, 6119565, 9383333, 12239130, 18766666, 28149999, 46916665, 56299998, 93833330, 140749995, 281499990]

約数ペア:

[(1, 281499990), (2, 140749995), (3, 93833330), (5, 56299998), (6, 46916665), (10, 28149999), (15, 18766666), (23, 12239130), (30, 9383333), (46, 6119565), (69, 4079710), (115, 2447826), (138, 2039855), (230, 1223913), (345, 815942), (690, 407971)]