12990420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{72169}}^1$

素因数の和:72184

約数の個数: 36

約数和(自身を含む): 39404820

約数和(自身を除く): 26414400

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 72169, 144338, 216507, 288676, 360845, 433014, 649521, 721690, 866028, 1082535, 1299042, 1443380, 2165070, 2598084, 3247605, 4330140, 6495210, 12990420]

約数ペア:

[(1, 12990420), (2, 6495210), (3, 4330140), (4, 3247605), (5, 2598084), (6, 2165070), (9, 1443380), (10, 1299042), (12, 1082535), (15, 866028), (18, 721690), (20, 649521), (30, 433014), (36, 360845), (45, 288676), (60, 216507), (90, 144338), (180, 72169)]