1561511520

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1697}}^1$

素因数の和:1795

約数の個数: 240

約数和(自身を含む): 5591744928

約数和(自身を除く): 4030233408

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, 71, 72, 80, 81, 90, 96, 108, 120, 135, 142, 144, 160, 162, 180, 213, 216, 240, 270, 284, 288, 324, 355, 360, 405, 426, 432, 480, 540, 568, 639, 648, 710, 720, 810, 852, 864, 1065, 1080, 1136, 1278, 1296, 1420, 1440, 1620, 1697, 1704, 1917, 2130, 2160, 2272, 2556, 2592, 2840, 3195, 3240, 3394, 3408, 3834, 4260, 4320, 5091, 5112, 5680, 5751, 6390, 6480, 6788, 6816, 7668, 8485, 8520, 9585, 10182, 10224, 11360, 11502, 12780, 12960, 13576, 15273, 15336, 16970, 17040, 19170, 20364, 20448, 23004, 25455, 25560, 27152, 28755, 30546, 30672, 33940, 34080, 38340, 40728, 45819, 46008, 50910, 51120, 54304, 57510, 61092, 61344, 67880, 76365, 76680, 81456, 91638, 92016, 101820, 102240, 115020, 120487, 122184, 135760, 137457, 152730, 153360, 162912, 183276, 184032, 203640, 229095, 230040, 240974, 244368, 271520, 274914, 305460, 306720, 361461, 366552, 407280, 458190, 460080, 481948, 488736, 549828, 602435, 610920, 687285, 722922, 733104, 814560, 916380, 920160, 963896, 1084383, 1099656, 1204870, 1221840, 1374570, 1445844, 1466208, 1807305, 1832760, 1927792, 2168766, 2199312, 2409740, 2443680, 2749140, 2891688, 3253149, 3614610, 3665520, 3855584, 4337532, 4398624, 4819480, 5421915, 5498280, 5783376, 6506298, 7229220, 7331040, 8675064, 9638960, 9759447, 10843830, 10996560, 11566752, 13012596, 14458440, 16265745, 17350128, 19277920, 19518894, 21687660, 21993120, 26025192, 28916880, 32531490, 34700256, 39037788, 43375320, 48797235, 52050384, 57833760, 65062980, 78075576, 86750640, 97594470, 104100768, 130125960, 156151152, 173501280, 195188940, 260251920, 312302304, 390377880, 520503840, 780755760, 1561511520]

約数ペア:

[(1, 1561511520), (2, 780755760), (3, 520503840), (4, 390377880), (5, 312302304), (6, 260251920), (8, 195188940), (9, 173501280), (10, 156151152), (12, 130125960), (15, 104100768), (16, 97594470), (18, 86750640), (20, 78075576), (24, 65062980), (27, 57833760), (30, 52050384), (32, 48797235), (36, 43375320), (40, 39037788), (45, 34700256), (48, 32531490), (54, 28916880), (60, 26025192), (71, 21993120), (72, 21687660), (80, 19518894), (81, 19277920), (90, 17350128), (96, 16265745), (108, 14458440), (120, 13012596), (135, 11566752), (142, 10996560), (144, 10843830), (160, 9759447), (162, 9638960), (180, 8675064), (213, 7331040), (216, 7229220), (240, 6506298), (270, 5783376), (284, 5498280), (288, 5421915), (324, 4819480), (355, 4398624), (360, 4337532), (405, 3855584), (426, 3665520), (432, 3614610), (480, 3253149), (540, 2891688), (568, 2749140), (639, 2443680), (648, 2409740), (710, 2199312), (720, 2168766), (810, 1927792), (852, 1832760), (864, 1807305), (1065, 1466208), (1080, 1445844), (1136, 1374570), (1278, 1221840), (1296, 1204870), (1420, 1099656), (1440, 1084383), (1620, 963896), (1697, 920160), (1704, 916380), (1917, 814560), (2130, 733104), (2160, 722922), (2272, 687285), (2556, 610920), (2592, 602435), (2840, 549828), (3195, 488736), (3240, 481948), (3394, 460080), (3408, 458190), (3834, 407280), (4260, 366552), (4320, 361461), (5091, 306720), (5112, 305460), (5680, 274914), (5751, 271520), (6390, 244368), (6480, 240974), (6788, 230040), (6816, 229095), (7668, 203640), (8485, 184032), (8520, 183276), (9585, 162912), (10182, 153360), (10224, 152730), (11360, 137457), (11502, 135760), (12780, 122184), (12960, 120487), (13576, 115020), (15273, 102240), (15336, 101820), (16970, 92016), (17040, 91638), (19170, 81456), (20364, 76680), (20448, 76365), (23004, 67880), (25455, 61344), (25560, 61092), (27152, 57510), (28755, 54304), (30546, 51120), (30672, 50910), (33940, 46008), (34080, 45819), (38340, 40728)]