165268520

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{67733}}^1$

素因数の和:67805

約数の個数: 32

約数和(自身を含む): 377955720

約数和(自身を除く): 212687200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 67733, 135466, 270932, 338665, 541864, 677330, 1354660, 2709320, 4131713, 8263426, 16526852, 20658565, 33053704, 41317130, 82634260, 165268520]

約数ペア:

[(1, 165268520), (2, 82634260), (4, 41317130), (5, 33053704), (8, 20658565), (10, 16526852), (20, 8263426), (40, 4131713), (61, 2709320), (122, 1354660), (244, 677330), (305, 541864), (488, 338665), (610, 270932), (1220, 135466), (2440, 67733)]