397385320

素因数分解:

$2^3\times 5^1\times {\mathrm{883}}^1\times {\mathrm{11251}}^1$

素因数の和:12145

約数の個数: 32

約数和(自身を含む): 895209120

約数和(自身を除く): 497823800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 883, 1766, 3532, 4415, 7064, 8830, 11251, 17660, 22502, 35320, 45004, 56255, 90008, 112510, 225020, 450040, 9934633, 19869266, 39738532, 49673165, 79477064, 99346330, 198692660, 397385320]

約数ペア:

[(1, 397385320), (2, 198692660), (4, 99346330), (5, 79477064), (8, 49673165), (10, 39738532), (20, 19869266), (40, 9934633), (883, 450040), (1766, 225020), (3532, 112510), (4415, 90008), (7064, 56255), (8830, 45004), (11251, 35320), (17660, 22502)]