19945730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{3433}}^1$

素因数の和:3530

約数の個数: 32

約数和(自身を含む): 41537664

約数和(自身を除く): 21591934

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 83, 166, 415, 581, 830, 1162, 2905, 3433, 5810, 6866, 17165, 24031, 34330, 48062, 120155, 240310, 284939, 569878, 1424695, 1994573, 2849390, 3989146, 9972865, 19945730]

約数ペア:

[(1, 19945730), (2, 9972865), (5, 3989146), (7, 2849390), (10, 1994573), (14, 1424695), (35, 569878), (70, 284939), (83, 240310), (166, 120155), (415, 48062), (581, 34330), (830, 24031), (1162, 17165), (2905, 6866), (3433, 5810)]