20289315680

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{439}}^1\times {\mathrm{661}}^1$

素因数の和:1157

約数の個数: 192

約数和(自身を含む): 52849843200

約数和(自身を除く): 32560527520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 23, 32, 38, 40, 46, 76, 80, 92, 95, 115, 152, 160, 184, 190, 230, 304, 368, 380, 437, 439, 460, 608, 661, 736, 760, 874, 878, 920, 1322, 1520, 1748, 1756, 1840, 2185, 2195, 2644, 3040, 3305, 3496, 3512, 3680, 4370, 4390, 5288, 6610, 6992, 7024, 8341, 8740, 8780, 10097, 10576, 12559, 13220, 13984, 14048, 15203, 16682, 17480, 17560, 20194, 21152, 25118, 26440, 30406, 33364, 34960, 35120, 40388, 41705, 50236, 50485, 52880, 60812, 62795, 66728, 69920, 70240, 76015, 80776, 83410, 100472, 100970, 105760, 121624, 125590, 133456, 152030, 161552, 166820, 191843, 200944, 201940, 243248, 251180, 266912, 288857, 290179, 304060, 323104, 333640, 383686, 401888, 403880, 486496, 502360, 577714, 580358, 608120, 667280, 767372, 807760, 959215, 1004720, 1155428, 1160716, 1216240, 1334560, 1444285, 1450895, 1534744, 1615520, 1918430, 2009440, 2310856, 2321432, 2432480, 2888570, 2901790, 3069488, 3836860, 4621712, 4642864, 5513401, 5777140, 5803580, 6138976, 6674117, 7673720, 9243424, 9285728, 11026802, 11554280, 11607160, 13348234, 15347440, 22053604, 23108560, 23214320, 26696468, 27567005, 30694880, 33370585, 44107208, 46217120, 46428640, 53392936, 55134010, 66741170, 88214416, 106785872, 110268020, 126808223, 133482340, 176428832, 213571744, 220536040, 253616446, 266964680, 441072080, 507232892, 533929360, 634041115, 882144160, 1014465784, 1067858720, 1268082230, 2028931568, 2536164460, 4057863136, 5072328920, 10144657840, 20289315680]

約数ペア:

[(1, 20289315680), (2, 10144657840), (4, 5072328920), (5, 4057863136), (8, 2536164460), (10, 2028931568), (16, 1268082230), (19, 1067858720), (20, 1014465784), (23, 882144160), (32, 634041115), (38, 533929360), (40, 507232892), (46, 441072080), (76, 266964680), (80, 253616446), (92, 220536040), (95, 213571744), (115, 176428832), (152, 133482340), (160, 126808223), (184, 110268020), (190, 106785872), (230, 88214416), (304, 66741170), (368, 55134010), (380, 53392936), (437, 46428640), (439, 46217120), (460, 44107208), (608, 33370585), (661, 30694880), (736, 27567005), (760, 26696468), (874, 23214320), (878, 23108560), (920, 22053604), (1322, 15347440), (1520, 13348234), (1748, 11607160), (1756, 11554280), (1840, 11026802), (2185, 9285728), (2195, 9243424), (2644, 7673720), (3040, 6674117), (3305, 6138976), (3496, 5803580), (3512, 5777140), (3680, 5513401), (4370, 4642864), (4390, 4621712), (5288, 3836860), (6610, 3069488), (6992, 2901790), (7024, 2888570), (8341, 2432480), (8740, 2321432), (8780, 2310856), (10097, 2009440), (10576, 1918430), (12559, 1615520), (13220, 1534744), (13984, 1450895), (14048, 1444285), (15203, 1334560), (16682, 1216240), (17480, 1160716), (17560, 1155428), (20194, 1004720), (21152, 959215), (25118, 807760), (26440, 767372), (30406, 667280), (33364, 608120), (34960, 580358), (35120, 577714), (40388, 502360), (41705, 486496), (50236, 403880), (50485, 401888), (52880, 383686), (60812, 333640), (62795, 323104), (66728, 304060), (69920, 290179), (70240, 288857), (76015, 266912), (80776, 251180), (83410, 243248), (100472, 201940), (100970, 200944), (105760, 191843), (121624, 166820), (125590, 161552), (133456, 152030)]