21606960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{457}}^1$

素因数の和:670

約数の個数: 80

約数和(自身を含む): 67468896

約数和(自身を除く): 45861936

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 197, 240, 394, 457, 591, 788, 914, 985, 1182, 1371, 1576, 1828, 1970, 2285, 2364, 2742, 2955, 3152, 3656, 3940, 4570, 4728, 5484, 5910, 6855, 7312, 7880, 9140, 9456, 10968, 11820, 13710, 15760, 18280, 21936, 23640, 27420, 36560, 47280, 54840, 90029, 109680, 180058, 270087, 360116, 450145, 540174, 720232, 900290, 1080348, 1350435, 1440464, 1800580, 2160696, 2700870, 3601160, 4321392, 5401740, 7202320, 10803480, 21606960]

約数ペア:

[(1, 21606960), (2, 10803480), (3, 7202320), (4, 5401740), (5, 4321392), (6, 3601160), (8, 2700870), (10, 2160696), (12, 1800580), (15, 1440464), (16, 1350435), (20, 1080348), (24, 900290), (30, 720232), (40, 540174), (48, 450145), (60, 360116), (80, 270087), (120, 180058), (197, 109680), (240, 90029), (394, 54840), (457, 47280), (591, 36560), (788, 27420), (914, 23640), (985, 21936), (1182, 18280), (1371, 15760), (1576, 13710), (1828, 11820), (1970, 10968), (2285, 9456), (2364, 9140), (2742, 7880), (2955, 7312), (3152, 6855), (3656, 5910), (3940, 5484), (4570, 4728)]