20033990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{617}}^1$

素因数の和:832

約数の個数: 32

約数和(自身を含む): 38444544

約数和(自身を除く): 18410554

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 191, 382, 617, 955, 1234, 1910, 3085, 3247, 6170, 6494, 10489, 16235, 20978, 32470, 52445, 104890, 117847, 235694, 589235, 1178470, 2003399, 4006798, 10016995, 20033990]

約数ペア:

[(1, 20033990), (2, 10016995), (5, 4006798), (10, 2003399), (17, 1178470), (34, 589235), (85, 235694), (170, 117847), (191, 104890), (382, 52445), (617, 32470), (955, 20978), (1234, 16235), (1910, 10489), (3085, 6494), (3247, 6170)]