20897777375

素因数分解:

$5^3\times {\mathrm{67}}^1\times {\mathrm{1009}}^1\times {\mathrm{2473}}^1$

素因数の和:3564

約数の個数: 32

約数和(自身を含む): 26506633920

約数和(自身を除く): 5608856545

約数列:

[1, 5, 25, 67, 125, 335, 1009, 1675, 2473, 5045, 8375, 12365, 25225, 61825, 67603, 126125, 165691, 309125, 338015, 828455, 1690075, 2495257, 4142275, 8450375, 12476285, 20711375, 62381425, 167182219, 311907125, 835911095, 4179555475, 20897777375]

約数ペア:

[(1, 20897777375), (5, 4179555475), (25, 835911095), (67, 311907125), (125, 167182219), (335, 62381425), (1009, 20711375), (1675, 12476285), (2473, 8450375), (5045, 4142275), (8375, 2495257), (12365, 1690075), (25225, 828455), (61825, 338015), (67603, 309125), (126125, 165691)]