85380840

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{487}}^2$

素因数の和:991

約数の個数: 72

約数和(自身を含む): 278058690

約数和(自身を除く): 192677850

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 487, 974, 1461, 1948, 2435, 2922, 3896, 4383, 4870, 5844, 7305, 8766, 9740, 11688, 14610, 17532, 19480, 21915, 29220, 35064, 43830, 58440, 87660, 175320, 237169, 474338, 711507, 948676, 1185845, 1423014, 1897352, 2134521, 2371690, 2846028, 3557535, 4269042, 4743380, 5692056, 7115070, 8538084, 9486760, 10672605, 14230140, 17076168, 21345210, 28460280, 42690420, 85380840]

約数ペア:

[(1, 85380840), (2, 42690420), (3, 28460280), (4, 21345210), (5, 17076168), (6, 14230140), (8, 10672605), (9, 9486760), (10, 8538084), (12, 7115070), (15, 5692056), (18, 4743380), (20, 4269042), (24, 3557535), (30, 2846028), (36, 2371690), (40, 2134521), (45, 1897352), (60, 1423014), (72, 1185845), (90, 948676), (120, 711507), (180, 474338), (360, 237169), (487, 175320), (974, 87660), (1461, 58440), (1948, 43830), (2435, 35064), (2922, 29220), (3896, 21915), (4383, 19480), (4870, 17532), (5844, 14610), (7305, 11688), (8766, 9740)]