28753960

素因数分解:

$2^3\times 5^1\times {\mathrm{449}}^1\times {\mathrm{1601}}^1$

素因数の和:2061

約数の個数: 32

約数和(自身を含む): 64881000

約数和(自身を除く): 36127040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 449, 898, 1601, 1796, 2245, 3202, 3592, 4490, 6404, 8005, 8980, 12808, 16010, 17960, 32020, 64040, 718849, 1437698, 2875396, 3594245, 5750792, 7188490, 14376980, 28753960]

約数ペア:

[(1, 28753960), (2, 14376980), (4, 7188490), (5, 5750792), (8, 3594245), (10, 2875396), (20, 1437698), (40, 718849), (449, 64040), (898, 32020), (1601, 17960), (1796, 16010), (2245, 12808), (3202, 8980), (3592, 8005), (4490, 6404)]