21920040

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{60889}}^1$

素因数の和:60906

約数の個数: 48

約数和(自身を含む): 71241300

約数和(自身を除く): 49321260

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 60889, 121778, 182667, 243556, 304445, 365334, 487112, 548001, 608890, 730668, 913335, 1096002, 1217780, 1461336, 1826670, 2192004, 2435560, 2740005, 3653340, 4384008, 5480010, 7306680, 10960020, 21920040]

約数ペア:

[(1, 21920040), (2, 10960020), (3, 7306680), (4, 5480010), (5, 4384008), (6, 3653340), (8, 2740005), (9, 2435560), (10, 2192004), (12, 1826670), (15, 1461336), (18, 1217780), (20, 1096002), (24, 913335), (30, 730668), (36, 608890), (40, 548001), (45, 487112), (60, 365334), (72, 304445), (90, 243556), (120, 182667), (180, 121778), (360, 60889)]