20512694880

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{249911}}^1$

素因数の和:249954

約数の個数: 192

約数和(自身を含む): 75573388800

約数和(自身を除く): 55060693920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 27, 30, 32, 36, 38, 40, 45, 48, 54, 57, 60, 72, 76, 80, 90, 95, 96, 108, 114, 120, 135, 144, 152, 160, 171, 180, 190, 216, 228, 240, 270, 285, 288, 304, 342, 360, 380, 432, 456, 480, 513, 540, 570, 608, 684, 720, 760, 855, 864, 912, 1026, 1080, 1140, 1368, 1440, 1520, 1710, 1824, 2052, 2160, 2280, 2565, 2736, 3040, 3420, 4104, 4320, 4560, 5130, 5472, 6840, 8208, 9120, 10260, 13680, 16416, 20520, 27360, 41040, 82080, 249911, 499822, 749733, 999644, 1249555, 1499466, 1999288, 2249199, 2499110, 2998932, 3748665, 3998576, 4498398, 4748309, 4998220, 5997864, 6747597, 7497330, 7997152, 8996796, 9496618, 9996440, 11245995, 11995728, 13495194, 14244927, 14994660, 17993592, 18993236, 19992880, 22491990, 23741545, 23991456, 26990388, 28489854, 29989320, 33737985, 35987184, 37986472, 39985760, 42734781, 44983980, 47483090, 53980776, 56979708, 59978640, 67475970, 71224635, 71974368, 75972944, 85469562, 89967960, 94966180, 107961552, 113959416, 119957280, 128204343, 134951940, 142449270, 151945888, 170939124, 179935920, 189932360, 213673905, 215923104, 227918832, 256408686, 269903880, 284898540, 341878248, 359871840, 379864720, 427347810, 455837664, 512817372, 539807760, 569797080, 641021715, 683756496, 759729440, 854695620, 1025634744, 1079615520, 1139594160, 1282043430, 1367512992, 1709391240, 2051269488, 2279188320, 2564086860, 3418782480, 4102538976, 5128173720, 6837564960, 10256347440, 20512694880]

約数ペア:

[(1, 20512694880), (2, 10256347440), (3, 6837564960), (4, 5128173720), (5, 4102538976), (6, 3418782480), (8, 2564086860), (9, 2279188320), (10, 2051269488), (12, 1709391240), (15, 1367512992), (16, 1282043430), (18, 1139594160), (19, 1079615520), (20, 1025634744), (24, 854695620), (27, 759729440), (30, 683756496), (32, 641021715), (36, 569797080), (38, 539807760), (40, 512817372), (45, 455837664), (48, 427347810), (54, 379864720), (57, 359871840), (60, 341878248), (72, 284898540), (76, 269903880), (80, 256408686), (90, 227918832), (95, 215923104), (96, 213673905), (108, 189932360), (114, 179935920), (120, 170939124), (135, 151945888), (144, 142449270), (152, 134951940), (160, 128204343), (171, 119957280), (180, 113959416), (190, 107961552), (216, 94966180), (228, 89967960), (240, 85469562), (270, 75972944), (285, 71974368), (288, 71224635), (304, 67475970), (342, 59978640), (360, 56979708), (380, 53980776), (432, 47483090), (456, 44983980), (480, 42734781), (513, 39985760), (540, 37986472), (570, 35987184), (608, 33737985), (684, 29989320), (720, 28489854), (760, 26990388), (855, 23991456), (864, 23741545), (912, 22491990), (1026, 19992880), (1080, 18993236), (1140, 17993592), (1368, 14994660), (1440, 14244927), (1520, 13495194), (1710, 11995728), (1824, 11245995), (2052, 9996440), (2160, 9496618), (2280, 8996796), (2565, 7997152), (2736, 7497330), (3040, 6747597), (3420, 5997864), (4104, 4998220), (4320, 4748309), (4560, 4498398), (5130, 3998576), (5472, 3748665), (6840, 2998932), (8208, 2499110), (9120, 2249199), (10260, 1999288), (13680, 1499466), (16416, 1249555), (20520, 999644), (27360, 749733), (41040, 499822), (82080, 249911)]