38800

素因数分解:

$2^4\times 5^2\times {\mathrm{97}}^1$

素因数の和:115

約数の個数: 30

約数和(自身を含む): 94178

約数和(自身を除く): 55378

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 97, 100, 194, 200, 388, 400, 485, 776, 970, 1552, 1940, 2425, 3880, 4850, 7760, 9700, 19400, 38800]

約数ペア:

[(1, 38800), (2, 19400), (4, 9700), (5, 7760), (8, 4850), (10, 3880), (16, 2425), (20, 1940), (25, 1552), (40, 970), (50, 776), (80, 485), (97, 400), (100, 388), (194, 200)]