878707940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{22067}}^1$

素因数の和:22268

約数の個数: 48

約数和(自身を含む): 2024253504

約数和(自身を除く): 1145545564

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 181, 220, 362, 724, 905, 1810, 1991, 3620, 3982, 7964, 9955, 19910, 22067, 39820, 44134, 88268, 110335, 220670, 242737, 441340, 485474, 970948, 1213685, 2427370, 3994127, 4854740, 7988254, 15976508, 19970635, 39941270, 43935397, 79882540, 87870794, 175741588, 219676985, 439353970, 878707940]

約数ペア:

[(1, 878707940), (2, 439353970), (4, 219676985), (5, 175741588), (10, 87870794), (11, 79882540), (20, 43935397), (22, 39941270), (44, 19970635), (55, 15976508), (110, 7988254), (181, 4854740), (220, 3994127), (362, 2427370), (724, 1213685), (905, 970948), (1810, 485474), (1991, 441340), (3620, 242737), (3982, 220670), (7964, 110335), (9955, 88268), (19910, 44134), (22067, 39820)]