198522560

素因数分解:

$2^6\times 5^1\times {\mathrm{620383}}^1$

素因数の和:620400

約数の個数: 28

約数和(自身を含む): 472732608

約数和(自身を除く): 274210048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 620383, 1240766, 2481532, 3101915, 4963064, 6203830, 9926128, 12407660, 19852256, 24815320, 39704512, 49630640, 99261280, 198522560]

約数ペア:

[(1, 198522560), (2, 99261280), (4, 49630640), (5, 39704512), (8, 24815320), (10, 19852256), (16, 12407660), (20, 9926128), (32, 6203830), (40, 4963064), (64, 3101915), (80, 2481532), (160, 1240766), (320, 620383)]