20601760

素因数分解:

$2^5\times 5^1\times {\mathrm{128761}}^1$

素因数の和:128776

約数の個数: 24

約数和(自身を含む): 48672036

約数和(自身を除く): 28070276

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 128761, 257522, 515044, 643805, 1030088, 1287610, 2060176, 2575220, 4120352, 5150440, 10300880, 20601760]

約数ペア:

[(1, 20601760), (2, 10300880), (4, 5150440), (5, 4120352), (8, 2575220), (10, 2060176), (16, 1287610), (20, 1030088), (32, 643805), (40, 515044), (80, 257522), (160, 128761)]