20249960

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{1597}}^1$

素因数の和:1925

約数の個数: 32

約数和(自身を含む): 45734760

約数和(自身を除く): 25484800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1585, 1597, 2536, 3170, 3194, 6340, 6388, 7985, 12680, 12776, 15970, 31940, 63880, 506249, 1012498, 2024996, 2531245, 4049992, 5062490, 10124980, 20249960]

約数ペア:

[(1, 20249960), (2, 10124980), (4, 5062490), (5, 4049992), (8, 2531245), (10, 2024996), (20, 1012498), (40, 506249), (317, 63880), (634, 31940), (1268, 15970), (1585, 12776), (1597, 12680), (2536, 7985), (3170, 6388), (3194, 6340)]