19913414975

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{115223}}^1$

素因数の和:115487

約数の個数: 24

約数和(自身を含む): 25603694592

約数和(自身を除く): 5690279617

約数列:

[1, 5, 25, 31, 155, 223, 775, 1115, 5575, 6913, 34565, 115223, 172825, 576115, 2880575, 3571913, 17859565, 25694729, 89297825, 128473645, 642368225, 796536599, 3982682995, 19913414975]

約数ペア:

[(1, 19913414975), (5, 3982682995), (25, 796536599), (31, 642368225), (155, 128473645), (223, 89297825), (775, 25694729), (1115, 17859565), (5575, 3571913), (6913, 2880575), (34565, 576115), (115223, 172825)]