20123897804

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{4340789}}^1$

素因数の和:4340873

約数の個数: 24

約数和(自身を含む): 37678057200

約数和(自身を除く): 17554159396

約数列:

[1, 2, 4, 19, 38, 61, 76, 122, 244, 1159, 2318, 4636, 4340789, 8681578, 17363156, 82474991, 164949982, 264788129, 329899964, 529576258, 1059152516, 5030974451, 10061948902, 20123897804]

約数ペア:

[(1, 20123897804), (2, 10061948902), (4, 5030974451), (19, 1059152516), (38, 529576258), (61, 329899964), (76, 264788129), (122, 164949982), (244, 82474991), (1159, 17363156), (2318, 8681578), (4636, 4340789)]