19947870

素因数分解:

$2^1\times 3^5\times 5^1\times {\mathrm{8209}}^1$

素因数の和:8231

約数の個数: 48

約数和(自身を含む): 53791920

約数和(自身を除く): 33844050

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 243, 270, 405, 486, 810, 1215, 2430, 8209, 16418, 24627, 41045, 49254, 73881, 82090, 123135, 147762, 221643, 246270, 369405, 443286, 664929, 738810, 1108215, 1329858, 1994787, 2216430, 3324645, 3989574, 6649290, 9973935, 19947870]

約数ペア:

[(1, 19947870), (2, 9973935), (3, 6649290), (5, 3989574), (6, 3324645), (9, 2216430), (10, 1994787), (15, 1329858), (18, 1108215), (27, 738810), (30, 664929), (45, 443286), (54, 369405), (81, 246270), (90, 221643), (135, 147762), (162, 123135), (243, 82090), (270, 73881), (405, 49254), (486, 41045), (810, 24627), (1215, 16418), (2430, 8209)]