40077680

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2543}}^1$

素因数の和:2753

約数の個数: 40

約数和(自身を含む): 93690432

約数和(自身を除く): 53612752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 985, 1576, 1970, 2543, 3152, 3940, 5086, 7880, 10172, 12715, 15760, 20344, 25430, 40688, 50860, 101720, 203440, 500971, 1001942, 2003884, 2504855, 4007768, 5009710, 8015536, 10019420, 20038840, 40077680]

約数ペア:

[(1, 40077680), (2, 20038840), (4, 10019420), (5, 8015536), (8, 5009710), (10, 4007768), (16, 2504855), (20, 2003884), (40, 1001942), (80, 500971), (197, 203440), (394, 101720), (788, 50860), (985, 40688), (1576, 25430), (1970, 20344), (2543, 15760), (3152, 12715), (3940, 10172), (5086, 7880)]