19871950

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{8111}}^1$

素因数の和:8137

約数の個数: 36

約数和(自身を含む): 43001712

約数和(自身を除く): 23129762

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 98, 175, 245, 350, 490, 1225, 2450, 8111, 16222, 40555, 56777, 81110, 113554, 202775, 283885, 397439, 405550, 567770, 794878, 1419425, 1987195, 2838850, 3974390, 9935975, 19871950]

約数ペア:

[(1, 19871950), (2, 9935975), (5, 3974390), (7, 2838850), (10, 1987195), (14, 1419425), (25, 794878), (35, 567770), (49, 405550), (50, 397439), (70, 283885), (98, 202775), (175, 113554), (245, 81110), (350, 56777), (490, 40555), (1225, 16222), (2450, 8111)]