81813645

素因数分解:

$3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{8783}}^1$

素因数の和:8823

約数の個数: 40

約数和(自身を含む): 153052416

約数和(自身を除く): 71238771

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 81, 115, 135, 207, 345, 405, 621, 1035, 1863, 3105, 8783, 9315, 26349, 43915, 79047, 131745, 202009, 237141, 395235, 606027, 711423, 1010045, 1185705, 1818081, 3030135, 3557115, 5454243, 9090405, 16362729, 27271215, 81813645]

約数ペア:

[(1, 81813645), (3, 27271215), (5, 16362729), (9, 9090405), (15, 5454243), (23, 3557115), (27, 3030135), (45, 1818081), (69, 1185705), (81, 1010045), (115, 711423), (135, 606027), (207, 395235), (345, 237141), (405, 202009), (621, 131745), (1035, 79047), (1863, 43915), (3105, 26349), (8783, 9315)]