39947116

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^2$

素因数の和:306

約数の個数: 36

約数和(自身を含む): 77890680

約数和(自身を除く): 37943564

約数列:

[1, 2, 4, 11, 22, 44, 89, 101, 178, 202, 356, 404, 979, 1111, 1958, 2222, 3916, 4444, 8989, 10201, 17978, 20402, 35956, 40804, 98879, 112211, 197758, 224422, 395516, 448844, 907889, 1815778, 3631556, 9986779, 19973558, 39947116]

約数ペア:

[(1, 39947116), (2, 19973558), (4, 9986779), (11, 3631556), (22, 1815778), (44, 907889), (89, 448844), (101, 395516), (178, 224422), (202, 197758), (356, 112211), (404, 98879), (979, 40804), (1111, 35956), (1958, 20402), (2222, 17978), (3916, 10201), (4444, 8989)]