21258944640

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{1230263}}^1$

素因数の和:1230291

約数の個数: 128

約数和(自身を含む): 75292156800

約数和(自身を除く): 54033212160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 128, 135, 144, 160, 180, 192, 216, 240, 270, 288, 320, 360, 384, 432, 480, 540, 576, 640, 720, 864, 960, 1080, 1152, 1440, 1728, 1920, 2160, 2880, 3456, 4320, 5760, 8640, 17280, 1230263, 2460526, 3690789, 4921052, 6151315, 7381578, 9842104, 11072367, 12302630, 14763156, 18453945, 19684208, 22144734, 24605260, 29526312, 33217101, 36907890, 39368416, 44289468, 49210520, 55361835, 59052624, 66434202, 73815780, 78736832, 88578936, 98421040, 110723670, 118105248, 132868404, 147631560, 157473664, 166085505, 177157872, 196842080, 221447340, 236210496, 265736808, 295263120, 332171010, 354315744, 393684160, 442894680, 472420992, 531473616, 590526240, 664342020, 708631488, 787368320, 885789360, 1062947232, 1181052480, 1328684040, 1417262976, 1771578720, 2125894464, 2362104960, 2657368080, 3543157440, 4251788928, 5314736160, 7086314880, 10629472320, 21258944640]

約数ペア:

[(1, 21258944640), (2, 10629472320), (3, 7086314880), (4, 5314736160), (5, 4251788928), (6, 3543157440), (8, 2657368080), (9, 2362104960), (10, 2125894464), (12, 1771578720), (15, 1417262976), (16, 1328684040), (18, 1181052480), (20, 1062947232), (24, 885789360), (27, 787368320), (30, 708631488), (32, 664342020), (36, 590526240), (40, 531473616), (45, 472420992), (48, 442894680), (54, 393684160), (60, 354315744), (64, 332171010), (72, 295263120), (80, 265736808), (90, 236210496), (96, 221447340), (108, 196842080), (120, 177157872), (128, 166085505), (135, 157473664), (144, 147631560), (160, 132868404), (180, 118105248), (192, 110723670), (216, 98421040), (240, 88578936), (270, 78736832), (288, 73815780), (320, 66434202), (360, 59052624), (384, 55361835), (432, 49210520), (480, 44289468), (540, 39368416), (576, 36907890), (640, 33217101), (720, 29526312), (864, 24605260), (960, 22144734), (1080, 19684208), (1152, 18453945), (1440, 14763156), (1728, 12302630), (1920, 11072367), (2160, 9842104), (2880, 7381578), (3456, 6151315), (4320, 4921052), (5760, 3690789), (8640, 2460526), (17280, 1230263)]