64657920

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{8419}}^1$

素因数の和:8445

約数の個数: 80

約数和(自身を含む): 206727840

約数和(自身を除く): 142069920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 512, 640, 768, 960, 1280, 1536, 1920, 2560, 3840, 7680, 8419, 16838, 25257, 33676, 42095, 50514, 67352, 84190, 101028, 126285, 134704, 168380, 202056, 252570, 269408, 336760, 404112, 505140, 538816, 673520, 808224, 1010280, 1077632, 1347040, 1616448, 2020560, 2155264, 2694080, 3232896, 4041120, 4310528, 5388160, 6465792, 8082240, 10776320, 12931584, 16164480, 21552640, 32328960, 64657920]

約数ペア:

[(1, 64657920), (2, 32328960), (3, 21552640), (4, 16164480), (5, 12931584), (6, 10776320), (8, 8082240), (10, 6465792), (12, 5388160), (15, 4310528), (16, 4041120), (20, 3232896), (24, 2694080), (30, 2155264), (32, 2020560), (40, 1616448), (48, 1347040), (60, 1077632), (64, 1010280), (80, 808224), (96, 673520), (120, 538816), (128, 505140), (160, 404112), (192, 336760), (240, 269408), (256, 252570), (320, 202056), (384, 168380), (480, 134704), (512, 126285), (640, 101028), (768, 84190), (960, 67352), (1280, 50514), (1536, 42095), (1920, 33676), (2560, 25257), (3840, 16838), (7680, 8419)]