40472720

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{5009}}^1$

素因数の和:5123

約数の個数: 40

約数和(自身を含む): 95049720

約数和(自身を除く): 54577000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 4040, 5009, 8080, 10018, 20036, 25045, 40072, 50090, 80144, 100180, 200360, 400720, 505909, 1011818, 2023636, 2529545, 4047272, 5059090, 8094544, 10118180, 20236360, 40472720]

約数ペア:

[(1, 40472720), (2, 20236360), (4, 10118180), (5, 8094544), (8, 5059090), (10, 4047272), (16, 2529545), (20, 2023636), (40, 1011818), (80, 505909), (101, 400720), (202, 200360), (404, 100180), (505, 80144), (808, 50090), (1010, 40072), (1616, 25045), (2020, 20036), (4040, 10018), (5009, 8080)]