647110020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{291491}}^1$

素因数の和:291540

約数の個数: 48

約数和(自身を含む): 1860884928

約数和(自身を除く): 1213774908

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 60, 74, 111, 148, 185, 222, 370, 444, 555, 740, 1110, 2220, 291491, 582982, 874473, 1165964, 1457455, 1748946, 2914910, 3497892, 4372365, 5829820, 8744730, 10785167, 17489460, 21570334, 32355501, 43140668, 53925835, 64711002, 107851670, 129422004, 161777505, 215703340, 323555010, 647110020]

約数ペア:

[(1, 647110020), (2, 323555010), (3, 215703340), (4, 161777505), (5, 129422004), (6, 107851670), (10, 64711002), (12, 53925835), (15, 43140668), (20, 32355501), (30, 21570334), (37, 17489460), (60, 10785167), (74, 8744730), (111, 5829820), (148, 4372365), (185, 3497892), (222, 2914910), (370, 1748946), (444, 1457455), (555, 1165964), (740, 874473), (1110, 582982), (2220, 291491)]