201791920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{229309}}^1$

素因数の和:229333

約数の個数: 40

約数和(自身を含む): 511819920

約数和(自身を除く): 310028000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 229309, 458618, 917236, 1146545, 1834472, 2293090, 2522399, 3668944, 4586180, 5044798, 9172360, 10089596, 12611995, 18344720, 20179192, 25223990, 40358384, 50447980, 100895960, 201791920]

約数ペア:

[(1, 201791920), (2, 100895960), (4, 50447980), (5, 40358384), (8, 25223990), (10, 20179192), (11, 18344720), (16, 12611995), (20, 10089596), (22, 9172360), (40, 5044798), (44, 4586180), (55, 3668944), (80, 2522399), (88, 2293090), (110, 1834472), (176, 1146545), (220, 917236), (440, 458618), (880, 229309)]