103420120

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{4021}}^1$

素因数の和:4675

約数の個数: 32

約数和(自身を含む): 233115120

約数和(自身を除く): 129695000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 2572, 3215, 4021, 5144, 6430, 8042, 12860, 16084, 20105, 25720, 32168, 40210, 80420, 160840, 2585503, 5171006, 10342012, 12927515, 20684024, 25855030, 51710060, 103420120]

約数ペア:

[(1, 103420120), (2, 51710060), (4, 25855030), (5, 20684024), (8, 12927515), (10, 10342012), (20, 5171006), (40, 2585503), (643, 160840), (1286, 80420), (2572, 40210), (3215, 32168), (4021, 25720), (5144, 20105), (6430, 16084), (8042, 12860)]