19861900

素因数分解:

$2^2\times 5^2\times {\mathrm{83}}^1\times {\mathrm{2393}}^1$

素因数の和:2490

約数の個数: 36

約数和(自身を含む): 43637832

約数和(自身を除く): 23775932

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 83, 100, 166, 332, 415, 830, 1660, 2075, 2393, 4150, 4786, 8300, 9572, 11965, 23930, 47860, 59825, 119650, 198619, 239300, 397238, 794476, 993095, 1986190, 3972380, 4965475, 9930950, 19861900]

約数ペア:

[(1, 19861900), (2, 9930950), (4, 4965475), (5, 3972380), (10, 1986190), (20, 993095), (25, 794476), (50, 397238), (83, 239300), (100, 198619), (166, 119650), (332, 59825), (415, 47860), (830, 23930), (1660, 11965), (2075, 9572), (2393, 8300), (4150, 4786)]