81330645

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{739}}^1$

素因数の和:810

約数の個数: 64

約数和(自身を含む): 153446400

約数和(自身を除く): 72115755

約数列:

[1, 3, 5, 11, 15, 23, 29, 33, 55, 69, 87, 115, 145, 165, 253, 319, 345, 435, 667, 739, 759, 957, 1265, 1595, 2001, 2217, 3335, 3695, 3795, 4785, 7337, 8129, 10005, 11085, 16997, 21431, 22011, 24387, 36685, 40645, 50991, 64293, 84985, 107155, 110055, 121935, 186967, 235741, 254955, 321465, 492913, 560901, 707223, 934835, 1178705, 1478739, 2464565, 2804505, 3536115, 5422043, 7393695, 16266129, 27110215, 81330645]

約数ペア:

[(1, 81330645), (3, 27110215), (5, 16266129), (11, 7393695), (15, 5422043), (23, 3536115), (29, 2804505), (33, 2464565), (55, 1478739), (69, 1178705), (87, 934835), (115, 707223), (145, 560901), (165, 492913), (253, 321465), (319, 254955), (345, 235741), (435, 186967), (667, 121935), (739, 110055), (759, 107155), (957, 84985), (1265, 64293), (1595, 50991), (2001, 40645), (2217, 36685), (3335, 24387), (3695, 22011), (3795, 21431), (4785, 16997), (7337, 11085), (8129, 10005)]