20717205840

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{23}}^2\times {\mathrm{18131}}^1$

素因数の和:18199

約数の個数: 240

約数和(自身を含む): 74600850240

約数和(自身を除く): 53883644400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 27, 30, 36, 40, 45, 46, 48, 54, 60, 69, 72, 80, 90, 92, 108, 115, 120, 135, 138, 144, 180, 184, 207, 216, 230, 240, 270, 276, 345, 360, 368, 414, 432, 460, 529, 540, 552, 621, 690, 720, 828, 920, 1035, 1058, 1080, 1104, 1242, 1380, 1587, 1656, 1840, 2070, 2116, 2160, 2484, 2645, 2760, 3105, 3174, 3312, 4140, 4232, 4761, 4968, 5290, 5520, 6210, 6348, 7935, 8280, 8464, 9522, 9936, 10580, 12420, 12696, 14283, 15870, 16560, 18131, 19044, 21160, 23805, 24840, 25392, 28566, 31740, 36262, 38088, 42320, 47610, 49680, 54393, 57132, 63480, 71415, 72524, 76176, 90655, 95220, 108786, 114264, 126960, 142830, 145048, 163179, 181310, 190440, 217572, 228528, 271965, 285660, 290096, 326358, 362620, 380880, 417013, 435144, 489537, 543930, 571320, 652716, 725240, 815895, 834026, 870288, 979074, 1087860, 1142640, 1251039, 1305432, 1450480, 1631790, 1668052, 1958148, 2085065, 2175720, 2447685, 2502078, 2610864, 3263580, 3336104, 3753117, 3916296, 4170130, 4351440, 4895370, 5004156, 6255195, 6527160, 6672208, 7506234, 7832592, 8340260, 9591299, 9790740, 10008312, 11259351, 12510390, 13054320, 15012468, 16680520, 18765585, 19182598, 19581480, 20016624, 22518702, 25020780, 28773897, 30024936, 33361040, 37531170, 38365196, 39162960, 45037404, 47956495, 50041560, 56296755, 57547794, 60049872, 75062340, 76730392, 86321691, 90074808, 95912990, 100083120, 112593510, 115095588, 143869485, 150124680, 153460784, 172643382, 180149616, 191825980, 225187020, 230191176, 258965073, 287738970, 300249360, 345286764, 383651960, 431608455, 450374040, 460382352, 517930146, 575477940, 690573528, 767303920, 863216910, 900748080, 1035860292, 1150955880, 1294825365, 1381147056, 1726433820, 2071720584, 2301911760, 2589650730, 3452867640, 4143441168, 5179301460, 6905735280, 10358602920, 20717205840]

約数ペア:

[(1, 20717205840), (2, 10358602920), (3, 6905735280), (4, 5179301460), (5, 4143441168), (6, 3452867640), (8, 2589650730), (9, 2301911760), (10, 2071720584), (12, 1726433820), (15, 1381147056), (16, 1294825365), (18, 1150955880), (20, 1035860292), (23, 900748080), (24, 863216910), (27, 767303920), (30, 690573528), (36, 575477940), (40, 517930146), (45, 460382352), (46, 450374040), (48, 431608455), (54, 383651960), (60, 345286764), (69, 300249360), (72, 287738970), (80, 258965073), (90, 230191176), (92, 225187020), (108, 191825980), (115, 180149616), (120, 172643382), (135, 153460784), (138, 150124680), (144, 143869485), (180, 115095588), (184, 112593510), (207, 100083120), (216, 95912990), (230, 90074808), (240, 86321691), (270, 76730392), (276, 75062340), (345, 60049872), (360, 57547794), (368, 56296755), (414, 50041560), (432, 47956495), (460, 45037404), (529, 39162960), (540, 38365196), (552, 37531170), (621, 33361040), (690, 30024936), (720, 28773897), (828, 25020780), (920, 22518702), (1035, 20016624), (1058, 19581480), (1080, 19182598), (1104, 18765585), (1242, 16680520), (1380, 15012468), (1587, 13054320), (1656, 12510390), (1840, 11259351), (2070, 10008312), (2116, 9790740), (2160, 9591299), (2484, 8340260), (2645, 7832592), (2760, 7506234), (3105, 6672208), (3174, 6527160), (3312, 6255195), (4140, 5004156), (4232, 4895370), (4761, 4351440), (4968, 4170130), (5290, 3916296), (5520, 3753117), (6210, 3336104), (6348, 3263580), (7935, 2610864), (8280, 2502078), (8464, 2447685), (9522, 2175720), (9936, 2085065), (10580, 1958148), (12420, 1668052), (12696, 1631790), (14283, 1450480), (15870, 1305432), (16560, 1251039), (18131, 1142640), (19044, 1087860), (21160, 979074), (23805, 870288), (24840, 834026), (25392, 815895), (28566, 725240), (31740, 652716), (36262, 571320), (38088, 543930), (42320, 489537), (47610, 435144), (49680, 417013), (54393, 380880), (57132, 362620), (63480, 326358), (71415, 290096), (72524, 285660), (76176, 271965), (90655, 228528), (95220, 217572), (108786, 190440), (114264, 181310), (126960, 163179), (142830, 145048)]