245217720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1$

素因数の和:286

約数の個数: 256

約数和(自身を含む): 862202880

約数和(自身を除く): 616985160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 23, 24, 30, 33, 40, 41, 44, 46, 55, 60, 66, 69, 82, 88, 92, 110, 115, 120, 123, 132, 138, 164, 165, 184, 197, 205, 220, 230, 246, 253, 264, 276, 328, 330, 345, 394, 410, 440, 451, 460, 492, 506, 552, 591, 615, 660, 690, 759, 788, 820, 902, 920, 943, 984, 985, 1012, 1182, 1230, 1265, 1320, 1353, 1380, 1518, 1576, 1640, 1804, 1886, 1970, 2024, 2167, 2255, 2364, 2460, 2530, 2706, 2760, 2829, 2955, 3036, 3608, 3772, 3795, 3940, 4334, 4510, 4531, 4715, 4728, 4920, 5060, 5412, 5658, 5910, 6072, 6501, 6765, 7544, 7590, 7880, 8077, 8668, 9020, 9062, 9430, 10120, 10373, 10824, 10835, 11316, 11820, 13002, 13530, 13593, 14145, 15180, 16154, 17336, 18040, 18124, 18860, 20746, 21670, 22632, 22655, 23640, 24231, 26004, 27060, 27186, 28290, 30360, 31119, 32308, 32505, 36248, 37720, 40385, 41492, 43340, 45310, 48462, 49841, 51865, 52008, 54120, 54372, 56580, 62238, 64616, 65010, 67965, 80770, 82984, 86680, 88847, 90620, 96924, 99682, 103730, 108744, 113160, 121155, 124476, 130020, 135930, 149523, 155595, 161540, 177694, 181240, 185771, 193848, 199364, 207460, 242310, 248952, 249205, 260040, 266541, 271860, 299046, 311190, 323080, 355388, 371542, 398728, 414920, 444235, 484620, 498410, 533082, 543720, 557313, 598092, 622380, 710776, 743084, 747615, 888470, 928855, 969240, 996820, 1066164, 1114626, 1196184, 1244760, 1332705, 1486168, 1495230, 1776940, 1857710, 1993640, 2043481, 2132328, 2229252, 2665410, 2786565, 2990460, 3553880, 3715420, 4086962, 4458504, 5330820, 5573130, 5980920, 6130443, 7430840, 8173924, 10217405, 10661640, 11146260, 12260886, 16347848, 20434810, 22292520, 24521772, 30652215, 40869620, 49043544, 61304430, 81739240, 122608860, 245217720]

約数ペア:

[(1, 245217720), (2, 122608860), (3, 81739240), (4, 61304430), (5, 49043544), (6, 40869620), (8, 30652215), (10, 24521772), (11, 22292520), (12, 20434810), (15, 16347848), (20, 12260886), (22, 11146260), (23, 10661640), (24, 10217405), (30, 8173924), (33, 7430840), (40, 6130443), (41, 5980920), (44, 5573130), (46, 5330820), (55, 4458504), (60, 4086962), (66, 3715420), (69, 3553880), (82, 2990460), (88, 2786565), (92, 2665410), (110, 2229252), (115, 2132328), (120, 2043481), (123, 1993640), (132, 1857710), (138, 1776940), (164, 1495230), (165, 1486168), (184, 1332705), (197, 1244760), (205, 1196184), (220, 1114626), (230, 1066164), (246, 996820), (253, 969240), (264, 928855), (276, 888470), (328, 747615), (330, 743084), (345, 710776), (394, 622380), (410, 598092), (440, 557313), (451, 543720), (460, 533082), (492, 498410), (506, 484620), (552, 444235), (591, 414920), (615, 398728), (660, 371542), (690, 355388), (759, 323080), (788, 311190), (820, 299046), (902, 271860), (920, 266541), (943, 260040), (984, 249205), (985, 248952), (1012, 242310), (1182, 207460), (1230, 199364), (1265, 193848), (1320, 185771), (1353, 181240), (1380, 177694), (1518, 161540), (1576, 155595), (1640, 149523), (1804, 135930), (1886, 130020), (1970, 124476), (2024, 121155), (2167, 113160), (2255, 108744), (2364, 103730), (2460, 99682), (2530, 96924), (2706, 90620), (2760, 88847), (2829, 86680), (2955, 82984), (3036, 80770), (3608, 67965), (3772, 65010), (3795, 64616), (3940, 62238), (4334, 56580), (4510, 54372), (4531, 54120), (4715, 52008), (4728, 51865), (4920, 49841), (5060, 48462), (5412, 45310), (5658, 43340), (5910, 41492), (6072, 40385), (6501, 37720), (6765, 36248), (7544, 32505), (7590, 32308), (7880, 31119), (8077, 30360), (8668, 28290), (9020, 27186), (9062, 27060), (9430, 26004), (10120, 24231), (10373, 23640), (10824, 22655), (10835, 22632), (11316, 21670), (11820, 20746), (13002, 18860), (13530, 18124), (13593, 18040), (14145, 17336), (15180, 16154)]