20685510

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{3331}}^1$

素因数の和:3370

約数の個数: 64

約数和(自身を含む): 57576960

約数和(自身を除く): 36891450

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 27, 30, 45, 46, 54, 69, 90, 115, 135, 138, 207, 230, 270, 345, 414, 621, 690, 1035, 1242, 2070, 3105, 3331, 6210, 6662, 9993, 16655, 19986, 29979, 33310, 49965, 59958, 76613, 89937, 99930, 149895, 153226, 179874, 229839, 299790, 383065, 449685, 459678, 689517, 766130, 899370, 1149195, 1379034, 2068551, 2298390, 3447585, 4137102, 6895170, 10342755, 20685510]

約数ペア:

[(1, 20685510), (2, 10342755), (3, 6895170), (5, 4137102), (6, 3447585), (9, 2298390), (10, 2068551), (15, 1379034), (18, 1149195), (23, 899370), (27, 766130), (30, 689517), (45, 459678), (46, 449685), (54, 383065), (69, 299790), (90, 229839), (115, 179874), (135, 153226), (138, 149895), (207, 99930), (230, 89937), (270, 76613), (345, 59958), (414, 49965), (621, 33310), (690, 29979), (1035, 19986), (1242, 16655), (2070, 9993), (3105, 6662), (3331, 6210)]