19681300

素因数分解:

$2^2\times 5^2\times {\mathrm{97}}^1\times {\mathrm{2029}}^1$

素因数の和:2140

約数の個数: 36

約数和(自身を含む): 43169980

約数和(自身を除く): 23488680

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 97, 100, 194, 388, 485, 970, 1940, 2029, 2425, 4058, 4850, 8116, 9700, 10145, 20290, 40580, 50725, 101450, 196813, 202900, 393626, 787252, 984065, 1968130, 3936260, 4920325, 9840650, 19681300]

約数ペア:

[(1, 19681300), (2, 9840650), (4, 4920325), (5, 3936260), (10, 1968130), (20, 984065), (25, 787252), (50, 393626), (97, 202900), (100, 196813), (194, 101450), (388, 50725), (485, 40580), (970, 20290), (1940, 10145), (2029, 9700), (2425, 8116), (4058, 4850)]