20510650

素因数分解:

$2^1\times 5^2\times {\mathrm{97}}^1\times {\mathrm{4229}}^1$

素因数の和:4338

約数の個数: 24

約数和(自身を含む): 38552220

約数和(自身を除く): 18041570

約数列:

[1, 2, 5, 10, 25, 50, 97, 194, 485, 970, 2425, 4229, 4850, 8458, 21145, 42290, 105725, 211450, 410213, 820426, 2051065, 4102130, 10255325, 20510650]

約数ペア:

[(1, 20510650), (2, 10255325), (5, 4102130), (10, 2051065), (25, 820426), (50, 410213), (97, 211450), (194, 105725), (485, 42290), (970, 21145), (2425, 8458), (4229, 4850)]