20520433920

素因数分解:

$2^8\times 3^1\times 5^1\times 7^1\times {\mathrm{763409}}^1$

素因数の和:763440

約数の個数: 144

約数和(自身を含む): 74899681920

約数和(自身を除く): 54379248000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 256, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 768, 840, 896, 960, 1120, 1280, 1344, 1680, 1792, 1920, 2240, 2688, 3360, 3840, 4480, 5376, 6720, 8960, 13440, 26880, 763409, 1526818, 2290227, 3053636, 3817045, 4580454, 5343863, 6107272, 7634090, 9160908, 10687726, 11451135, 12214544, 15268180, 16031589, 18321816, 21375452, 22902270, 24429088, 26719315, 30536360, 32063178, 36643632, 42750904, 45804540, 48858176, 53438630, 61072720, 64126356, 73287264, 80157945, 85501808, 91609080, 97716352, 106877260, 122145440, 128252712, 146574528, 160315890, 171003616, 183218160, 195432704, 213754520, 244290880, 256505424, 293149056, 320631780, 342007232, 366436320, 427509040, 488581760, 513010848, 586298112, 641263560, 684014464, 732872640, 855018080, 977163520, 1026021696, 1282527120, 1368028928, 1465745280, 1710036160, 2052043392, 2565054240, 2931490560, 3420072320, 4104086784, 5130108480, 6840144640, 10260216960, 20520433920]

約数ペア:

[(1, 20520433920), (2, 10260216960), (3, 6840144640), (4, 5130108480), (5, 4104086784), (6, 3420072320), (7, 2931490560), (8, 2565054240), (10, 2052043392), (12, 1710036160), (14, 1465745280), (15, 1368028928), (16, 1282527120), (20, 1026021696), (21, 977163520), (24, 855018080), (28, 732872640), (30, 684014464), (32, 641263560), (35, 586298112), (40, 513010848), (42, 488581760), (48, 427509040), (56, 366436320), (60, 342007232), (64, 320631780), (70, 293149056), (80, 256505424), (84, 244290880), (96, 213754520), (105, 195432704), (112, 183218160), (120, 171003616), (128, 160315890), (140, 146574528), (160, 128252712), (168, 122145440), (192, 106877260), (210, 97716352), (224, 91609080), (240, 85501808), (256, 80157945), (280, 73287264), (320, 64126356), (336, 61072720), (384, 53438630), (420, 48858176), (448, 45804540), (480, 42750904), (560, 36643632), (640, 32063178), (672, 30536360), (768, 26719315), (840, 24429088), (896, 22902270), (960, 21375452), (1120, 18321816), (1280, 16031589), (1344, 15268180), (1680, 12214544), (1792, 11451135), (1920, 10687726), (2240, 9160908), (2688, 7634090), (3360, 6107272), (3840, 5343863), (4480, 4580454), (5376, 3817045), (6720, 3053636), (8960, 2290227), (13440, 1526818), (26880, 763409)]