20615130

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{433}}^1$

素因数の和:492

約数の個数: 72

約数和(自身を含む): 56160468

約数和(自身を除く): 35545338

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 45, 46, 69, 90, 115, 138, 207, 230, 345, 414, 433, 529, 690, 866, 1035, 1058, 1299, 1587, 2070, 2165, 2598, 2645, 3174, 3897, 4330, 4761, 5290, 6495, 7794, 7935, 9522, 9959, 12990, 15870, 19485, 19918, 23805, 29877, 38970, 47610, 49795, 59754, 89631, 99590, 149385, 179262, 229057, 298770, 448155, 458114, 687171, 896310, 1145285, 1374342, 2061513, 2290570, 3435855, 4123026, 6871710, 10307565, 20615130]

約数ペア:

[(1, 20615130), (2, 10307565), (3, 6871710), (5, 4123026), (6, 3435855), (9, 2290570), (10, 2061513), (15, 1374342), (18, 1145285), (23, 896310), (30, 687171), (45, 458114), (46, 448155), (69, 298770), (90, 229057), (115, 179262), (138, 149385), (207, 99590), (230, 89631), (345, 59754), (414, 49795), (433, 47610), (529, 38970), (690, 29877), (866, 23805), (1035, 19918), (1058, 19485), (1299, 15870), (1587, 12990), (2070, 9959), (2165, 9522), (2598, 7935), (2645, 7794), (3174, 6495), (3897, 5290), (4330, 4761)]