198451840

素因数分解:

$2^7\times 5^1\times {\mathrm{310081}}^1$

素因数の和:310100

約数の個数: 32

約数和(自身を含む): 474425460

約数和(自身を除く): 275973620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 310081, 620162, 1240324, 1550405, 2480648, 3100810, 4961296, 6201620, 9922592, 12403240, 19845184, 24806480, 39690368, 49612960, 99225920, 198451840]

約数ペア:

[(1, 198451840), (2, 99225920), (4, 49612960), (5, 39690368), (8, 24806480), (10, 19845184), (16, 12403240), (20, 9922592), (32, 6201620), (40, 4961296), (64, 3100810), (80, 2480648), (128, 1550405), (160, 1240324), (320, 620162), (640, 310081)]