20956760

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47629}}^1$

素因数の和:47651

約数の個数: 32

約数和(自身を含む): 51440400

約数和(自身を除く): 30483640

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 47629, 95258, 190516, 238145, 381032, 476290, 523919, 952580, 1047838, 1905160, 2095676, 2619595, 4191352, 5239190, 10478380, 20956760]

約数ペア:

[(1, 20956760), (2, 10478380), (4, 5239190), (5, 4191352), (8, 2619595), (10, 2095676), (11, 1905160), (20, 1047838), (22, 952580), (40, 523919), (44, 476290), (55, 381032), (88, 238145), (110, 190516), (220, 95258), (440, 47629)]