2021170064

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{19991}}^1$

素因数の和:20159

約数の個数: 40

約数和(自身を含む): 4015992960

約数和(自身を除く): 1994822896

約数列:

[1, 2, 4, 8, 16, 71, 89, 142, 178, 284, 356, 568, 712, 1136, 1424, 6319, 12638, 19991, 25276, 39982, 50552, 79964, 101104, 159928, 319856, 1419361, 1779199, 2838722, 3558398, 5677444, 7116796, 11354888, 14233592, 22709776, 28467184, 126323129, 252646258, 505292516, 1010585032, 2021170064]

約数ペア:

[(1, 2021170064), (2, 1010585032), (4, 505292516), (8, 252646258), (16, 126323129), (71, 28467184), (89, 22709776), (142, 14233592), (178, 11354888), (284, 7116796), (356, 5677444), (568, 3558398), (712, 2838722), (1136, 1779199), (1424, 1419361), (6319, 319856), (12638, 159928), (19991, 101104), (25276, 79964), (39982, 50552)]