81239510

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{151}}^1$

素因数の和:309

約数の個数: 64

約数和(自身を含む): 165210624

約数和(自身を除く): 83971114

約数列:

[1, 2, 5, 10, 11, 22, 55, 67, 73, 110, 134, 146, 151, 302, 335, 365, 670, 730, 737, 755, 803, 1474, 1510, 1606, 1661, 3322, 3685, 4015, 4891, 7370, 8030, 8305, 9782, 10117, 11023, 16610, 20234, 22046, 24455, 48910, 50585, 53801, 55115, 101170, 107602, 110230, 111287, 121253, 222574, 242506, 269005, 538010, 556435, 606265, 738541, 1112870, 1212530, 1477082, 3692705, 7385410, 8123951, 16247902, 40619755, 81239510]

約数ペア:

[(1, 81239510), (2, 40619755), (5, 16247902), (10, 8123951), (11, 7385410), (22, 3692705), (55, 1477082), (67, 1212530), (73, 1112870), (110, 738541), (134, 606265), (146, 556435), (151, 538010), (302, 269005), (335, 242506), (365, 222574), (670, 121253), (730, 111287), (737, 110230), (755, 107602), (803, 101170), (1474, 55115), (1510, 53801), (1606, 50585), (1661, 48910), (3322, 24455), (3685, 22046), (4015, 20234), (4891, 16610), (7370, 11023), (8030, 10117), (8305, 9782)]