81153315

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{881}}^1$

素因数の和:1004

約数の個数: 48

約数和(自身を含む): 148599360

約数和(自身を除く): 67446045

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 89, 115, 207, 267, 345, 445, 801, 881, 1035, 1335, 2047, 2643, 4005, 4405, 6141, 7929, 10235, 13215, 18423, 20263, 30705, 39645, 60789, 78409, 92115, 101315, 182367, 235227, 303945, 392045, 705681, 911835, 1176135, 1803407, 3528405, 5410221, 9017035, 16230663, 27051105, 81153315]

約数ペア:

[(1, 81153315), (3, 27051105), (5, 16230663), (9, 9017035), (15, 5410221), (23, 3528405), (45, 1803407), (69, 1176135), (89, 911835), (115, 705681), (207, 392045), (267, 303945), (345, 235227), (445, 182367), (801, 101315), (881, 92115), (1035, 78409), (1335, 60789), (2047, 39645), (2643, 30705), (4005, 20263), (4405, 18423), (6141, 13215), (7929, 10235)]