20189636845

素因数分解:

$5^1\times 7^4\times {\mathrm{479}}^1\times {\mathrm{3511}}^1$

素因数の和:4023

約数の個数: 40

約数和(自身を含む): 28330882560

約数和(自身を除く): 8141245715

約数列:

[1, 5, 7, 35, 49, 245, 343, 479, 1715, 2395, 2401, 3353, 3511, 12005, 16765, 17555, 23471, 24577, 117355, 122885, 164297, 172039, 821485, 860195, 1150079, 1204273, 1681769, 5750395, 6021365, 8408845, 8429911, 11772383, 42149555, 58861915, 82406681, 412033405, 576846767, 2884233835, 4037927369, 20189636845]

約数ペア:

[(1, 20189636845), (5, 4037927369), (7, 2884233835), (35, 576846767), (49, 412033405), (245, 82406681), (343, 58861915), (479, 42149555), (1715, 11772383), (2395, 8429911), (2401, 8408845), (3353, 6021365), (3511, 5750395), (12005, 1681769), (16765, 1204273), (17555, 1150079), (23471, 860195), (24577, 821485), (117355, 172039), (122885, 164297)]