21662841520

素因数分解:

$2^4\times 5^1\times {\mathrm{270785519}}^1$

素因数の和:270785532

約数の個数: 20

約数和(自身を含む): 50366106720

約数和(自身を除く): 28703265200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 270785519, 541571038, 1083142076, 1353927595, 2166284152, 2707855190, 4332568304, 5415710380, 10831420760, 21662841520]

約数ペア:

[(1, 21662841520), (2, 10831420760), (4, 5415710380), (5, 4332568304), (8, 2707855190), (10, 2166284152), (16, 1353927595), (20, 1083142076), (40, 541571038), (80, 270785519)]