81660840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{680507}}^1$

素因数の和:680521

約数の個数: 32

約数和(自身を含む): 244982880

約数和(自身を除く): 163322040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 680507, 1361014, 2041521, 2722028, 3402535, 4083042, 5444056, 6805070, 8166084, 10207605, 13610140, 16332168, 20415210, 27220280, 40830420, 81660840]

約数ペア:

[(1, 81660840), (2, 40830420), (3, 27220280), (4, 20415210), (5, 16332168), (6, 13610140), (8, 10207605), (10, 8166084), (12, 6805070), (15, 5444056), (20, 4083042), (24, 3402535), (30, 2722028), (40, 2041521), (60, 1361014), (120, 680507)]