261855720

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1823}}^1$

素因数の和:1869

約数の個数: 256

約数和(自身を含む): 1050624000

約数和(自身を除く): 788768280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 19, 20, 21, 24, 27, 28, 30, 35, 36, 38, 40, 42, 45, 54, 56, 57, 60, 63, 70, 72, 76, 84, 90, 95, 105, 108, 114, 120, 126, 133, 135, 140, 152, 168, 171, 180, 189, 190, 210, 216, 228, 252, 266, 270, 280, 285, 315, 342, 360, 378, 380, 399, 420, 456, 504, 513, 532, 540, 570, 630, 665, 684, 756, 760, 798, 840, 855, 945, 1026, 1064, 1080, 1140, 1197, 1260, 1330, 1368, 1512, 1596, 1710, 1823, 1890, 1995, 2052, 2280, 2394, 2520, 2565, 2660, 3192, 3420, 3591, 3646, 3780, 3990, 4104, 4788, 5130, 5320, 5469, 5985, 6840, 7182, 7292, 7560, 7980, 9115, 9576, 10260, 10938, 11970, 12761, 14364, 14584, 15960, 16407, 17955, 18230, 20520, 21876, 23940, 25522, 27345, 28728, 32814, 34637, 35910, 36460, 38283, 43752, 47880, 49221, 51044, 54690, 63805, 65628, 69274, 71820, 72920, 76566, 82035, 98442, 102088, 103911, 109380, 114849, 127610, 131256, 138548, 143640, 153132, 164070, 173185, 191415, 196884, 207822, 218760, 229698, 242459, 246105, 255220, 277096, 306264, 311733, 328140, 344547, 346370, 382830, 393768, 415644, 459396, 484918, 492210, 510440, 519555, 574245, 623466, 656280, 689094, 692740, 727377, 765660, 831288, 918792, 935199, 969836, 984420, 1039110, 1148490, 1212295, 1246932, 1378188, 1385480, 1454754, 1531320, 1558665, 1722735, 1870398, 1939672, 1968840, 2078220, 2182131, 2296980, 2424590, 2493864, 2756376, 2909508, 3117330, 3445470, 3636885, 3740796, 4156440, 4364262, 4593960, 4675995, 4849180, 5819016, 6234660, 6546393, 6890940, 7273770, 7481592, 8728524, 9351990, 9698360, 10910655, 12469320, 13092786, 13781880, 14547540, 17457048, 18703980, 21821310, 26185572, 29095080, 32731965, 37407960, 43642620, 52371144, 65463930, 87285240, 130927860, 261855720]

約数ペア:

[(1, 261855720), (2, 130927860), (3, 87285240), (4, 65463930), (5, 52371144), (6, 43642620), (7, 37407960), (8, 32731965), (9, 29095080), (10, 26185572), (12, 21821310), (14, 18703980), (15, 17457048), (18, 14547540), (19, 13781880), (20, 13092786), (21, 12469320), (24, 10910655), (27, 9698360), (28, 9351990), (30, 8728524), (35, 7481592), (36, 7273770), (38, 6890940), (40, 6546393), (42, 6234660), (45, 5819016), (54, 4849180), (56, 4675995), (57, 4593960), (60, 4364262), (63, 4156440), (70, 3740796), (72, 3636885), (76, 3445470), (84, 3117330), (90, 2909508), (95, 2756376), (105, 2493864), (108, 2424590), (114, 2296980), (120, 2182131), (126, 2078220), (133, 1968840), (135, 1939672), (140, 1870398), (152, 1722735), (168, 1558665), (171, 1531320), (180, 1454754), (189, 1385480), (190, 1378188), (210, 1246932), (216, 1212295), (228, 1148490), (252, 1039110), (266, 984420), (270, 969836), (280, 935199), (285, 918792), (315, 831288), (342, 765660), (360, 727377), (378, 692740), (380, 689094), (399, 656280), (420, 623466), (456, 574245), (504, 519555), (513, 510440), (532, 492210), (540, 484918), (570, 459396), (630, 415644), (665, 393768), (684, 382830), (756, 346370), (760, 344547), (798, 328140), (840, 311733), (855, 306264), (945, 277096), (1026, 255220), (1064, 246105), (1080, 242459), (1140, 229698), (1197, 218760), (1260, 207822), (1330, 196884), (1368, 191415), (1512, 173185), (1596, 164070), (1710, 153132), (1823, 143640), (1890, 138548), (1995, 131256), (2052, 127610), (2280, 114849), (2394, 109380), (2520, 103911), (2565, 102088), (2660, 98442), (3192, 82035), (3420, 76566), (3591, 72920), (3646, 71820), (3780, 69274), (3990, 65628), (4104, 63805), (4788, 54690), (5130, 51044), (5320, 49221), (5469, 47880), (5985, 43752), (6840, 38283), (7182, 36460), (7292, 35910), (7560, 34637), (7980, 32814), (9115, 28728), (9576, 27345), (10260, 25522), (10938, 23940), (11970, 21876), (12761, 20520), (14364, 18230), (14584, 17955), (15960, 16407)]