643760640

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{27941}}^1$

素因数の和:27970

約数の個数: 120

約数和(自身を含む): 2229603948

約数和(自身を除く): 1585843308

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 480, 512, 576, 640, 720, 768, 960, 1152, 1280, 1440, 1536, 1920, 2304, 2560, 2880, 3840, 4608, 5760, 7680, 11520, 23040, 27941, 55882, 83823, 111764, 139705, 167646, 223528, 251469, 279410, 335292, 419115, 447056, 502938, 558820, 670584, 838230, 894112, 1005876, 1117640, 1257345, 1341168, 1676460, 1788224, 2011752, 2235280, 2514690, 2682336, 3352920, 3576448, 4023504, 4470560, 5029380, 5364672, 6705840, 7152896, 8047008, 8941120, 10058760, 10729344, 13411680, 14305792, 16094016, 17882240, 20117520, 21458688, 26823360, 32188032, 35764480, 40235040, 42917376, 53646720, 64376064, 71528960, 80470080, 107293440, 128752128, 160940160, 214586880, 321880320, 643760640]

約数ペア:

[(1, 643760640), (2, 321880320), (3, 214586880), (4, 160940160), (5, 128752128), (6, 107293440), (8, 80470080), (9, 71528960), (10, 64376064), (12, 53646720), (15, 42917376), (16, 40235040), (18, 35764480), (20, 32188032), (24, 26823360), (30, 21458688), (32, 20117520), (36, 17882240), (40, 16094016), (45, 14305792), (48, 13411680), (60, 10729344), (64, 10058760), (72, 8941120), (80, 8047008), (90, 7152896), (96, 6705840), (120, 5364672), (128, 5029380), (144, 4470560), (160, 4023504), (180, 3576448), (192, 3352920), (240, 2682336), (256, 2514690), (288, 2235280), (320, 2011752), (360, 1788224), (384, 1676460), (480, 1341168), (512, 1257345), (576, 1117640), (640, 1005876), (720, 894112), (768, 838230), (960, 670584), (1152, 558820), (1280, 502938), (1440, 447056), (1536, 419115), (1920, 335292), (2304, 279410), (2560, 251469), (2880, 223528), (3840, 167646), (4608, 139705), (5760, 111764), (7680, 83823), (11520, 55882), (23040, 27941)]