20161310620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1029689}}^1$

素因数の和:1029798

約数の個数: 48

約数和(自身を含む): 46706738400

約数和(自身を除く): 26545427780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 220, 356, 445, 890, 979, 1780, 1958, 3916, 4895, 9790, 19580, 1029689, 2059378, 4118756, 5148445, 10296890, 11326579, 20593780, 22653158, 45306316, 56632895, 91642321, 113265790, 183284642, 226531580, 366569284, 458211605, 916423210, 1008065531, 1832846420, 2016131062, 4032262124, 5040327655, 10080655310, 20161310620]

約数ペア:

[(1, 20161310620), (2, 10080655310), (4, 5040327655), (5, 4032262124), (10, 2016131062), (11, 1832846420), (20, 1008065531), (22, 916423210), (44, 458211605), (55, 366569284), (89, 226531580), (110, 183284642), (178, 113265790), (220, 91642321), (356, 56632895), (445, 45306316), (890, 22653158), (979, 20593780), (1780, 11326579), (1958, 10296890), (3916, 5148445), (4895, 4118756), (9790, 2059378), (19580, 1029689)]