19885860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{110477}}^1$

素因数の和:110492

約数の個数: 36

約数和(自身を含む): 60320988

約数和(自身を除く): 40435128

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 110477, 220954, 331431, 441908, 552385, 662862, 994293, 1104770, 1325724, 1657155, 1988586, 2209540, 3314310, 3977172, 4971465, 6628620, 9942930, 19885860]

約数ペア:

[(1, 19885860), (2, 9942930), (3, 6628620), (4, 4971465), (5, 3977172), (6, 3314310), (9, 2209540), (10, 1988586), (12, 1657155), (15, 1325724), (18, 1104770), (20, 994293), (30, 662862), (36, 552385), (45, 441908), (60, 331431), (90, 220954), (180, 110477)]