64511920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73309}}^1$

素因数の和:73333

約数の個数: 40

約数和(自身を含む): 163627920

約数和(自身を除く): 99116000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 73309, 146618, 293236, 366545, 586472, 733090, 806399, 1172944, 1466180, 1612798, 2932360, 3225596, 4031995, 5864720, 6451192, 8063990, 12902384, 16127980, 32255960, 64511920]

約数ペア:

[(1, 64511920), (2, 32255960), (4, 16127980), (5, 12902384), (8, 8063990), (10, 6451192), (11, 5864720), (16, 4031995), (20, 3225596), (22, 2932360), (40, 1612798), (44, 1466180), (55, 1172944), (80, 806399), (88, 733090), (110, 586472), (176, 366545), (220, 293236), (440, 146618), (880, 73309)]