40180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{41}}^1$

素因数の和:64

約数の個数: 36

約数和(自身を含む): 100548

約数和(自身を除く): 60368

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 140, 164, 196, 205, 245, 287, 410, 490, 574, 820, 980, 1148, 1435, 2009, 2870, 4018, 5740, 8036, 10045, 20090, 40180]

約数ペア:

[(1, 40180), (2, 20090), (4, 10045), (5, 8036), (7, 5740), (10, 4018), (14, 2870), (20, 2009), (28, 1435), (35, 1148), (41, 980), (49, 820), (70, 574), (82, 490), (98, 410), (140, 287), (164, 245), (196, 205)]