20856552660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{673}}^1\times {\mathrm{172169}}^1$

素因数の和:172857

約数の個数: 72

約数和(自身を含む): 63359248680

約数和(自身を除く): 42502696020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 673, 1346, 2019, 2692, 3365, 4038, 6057, 6730, 8076, 10095, 12114, 13460, 20190, 24228, 30285, 40380, 60570, 121140, 172169, 344338, 516507, 688676, 860845, 1033014, 1549521, 1721690, 2066028, 2582535, 3099042, 3443380, 5165070, 6198084, 7747605, 10330140, 15495210, 30990420, 115869737, 231739474, 347609211, 463478948, 579348685, 695218422, 1042827633, 1158697370, 1390436844, 1738046055, 2085655266, 2317394740, 3476092110, 4171310532, 5214138165, 6952184220, 10428276330, 20856552660]

約数ペア:

[(1, 20856552660), (2, 10428276330), (3, 6952184220), (4, 5214138165), (5, 4171310532), (6, 3476092110), (9, 2317394740), (10, 2085655266), (12, 1738046055), (15, 1390436844), (18, 1158697370), (20, 1042827633), (30, 695218422), (36, 579348685), (45, 463478948), (60, 347609211), (90, 231739474), (180, 115869737), (673, 30990420), (1346, 15495210), (2019, 10330140), (2692, 7747605), (3365, 6198084), (4038, 5165070), (6057, 3443380), (6730, 3099042), (8076, 2582535), (10095, 2066028), (12114, 1721690), (13460, 1549521), (20190, 1033014), (24228, 860845), (30285, 688676), (40380, 516507), (60570, 344338), (121140, 172169)]