4540720

素因数分解:

$2^4\times 5^1\times {\mathrm{211}}^1\times {\mathrm{269}}^1$

素因数の和:493

約数の個数: 40

約数和(自身を含む): 10646640

約数和(自身を除く): 6105920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 211, 269, 422, 538, 844, 1055, 1076, 1345, 1688, 2110, 2152, 2690, 3376, 4220, 4304, 5380, 8440, 10760, 16880, 21520, 56759, 113518, 227036, 283795, 454072, 567590, 908144, 1135180, 2270360, 4540720]

約数ペア:

[(1, 4540720), (2, 2270360), (4, 1135180), (5, 908144), (8, 567590), (10, 454072), (16, 283795), (20, 227036), (40, 113518), (80, 56759), (211, 21520), (269, 16880), (422, 10760), (538, 8440), (844, 5380), (1055, 4304), (1076, 4220), (1345, 3376), (1688, 2690), (2110, 2152)]