20236880

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1931}}^1$

素因数の和:2075

約数の個数: 40

約数和(自身を含む): 47434464

約数和(自身を除く): 27197584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1310, 1931, 2096, 2620, 3862, 5240, 7724, 9655, 10480, 15448, 19310, 30896, 38620, 77240, 154480, 252961, 505922, 1011844, 1264805, 2023688, 2529610, 4047376, 5059220, 10118440, 20236880]

約数ペア:

[(1, 20236880), (2, 10118440), (4, 5059220), (5, 4047376), (8, 2529610), (10, 2023688), (16, 1264805), (20, 1011844), (40, 505922), (80, 252961), (131, 154480), (262, 77240), (524, 38620), (655, 30896), (1048, 19310), (1310, 15448), (1931, 10480), (2096, 9655), (2620, 7724), (3862, 5240)]