20145850480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{227}}^1\times {\mathrm{439}}^1$

素因数の和:724

約数の個数: 240

約数和(自身を含む): 56874216960

約数和(自身を除く): 36728366480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 190, 227, 266, 280, 304, 361, 380, 439, 454, 532, 560, 665, 722, 760, 878, 908, 1064, 1135, 1330, 1444, 1520, 1589, 1756, 1805, 1816, 2128, 2195, 2270, 2527, 2660, 2888, 3073, 3178, 3512, 3610, 3632, 4313, 4390, 4540, 5054, 5320, 5776, 6146, 6356, 7024, 7220, 7945, 8341, 8626, 8780, 9080, 10108, 10640, 12292, 12635, 12712, 14440, 15365, 15890, 16682, 17252, 17560, 18160, 20216, 21565, 24584, 25270, 25424, 28880, 30191, 30730, 31780, 33364, 34504, 35120, 40432, 41705, 43130, 49168, 50540, 58387, 60382, 61460, 63560, 66728, 69008, 81947, 83410, 86260, 99653, 101080, 116774, 120764, 122920, 127120, 133456, 150955, 158479, 163894, 166820, 172520, 199306, 202160, 233548, 241528, 245840, 291935, 301910, 316958, 327788, 333640, 345040, 398612, 409735, 467096, 483056, 498265, 573629, 583870, 603820, 633916, 655576, 667280, 697571, 792395, 797224, 819470, 934192, 996530, 1109353, 1147258, 1167740, 1207640, 1267832, 1311152, 1395142, 1584790, 1594448, 1638940, 1893407, 1993060, 2218706, 2294516, 2335480, 2415280, 2535664, 2790284, 2868145, 3169580, 3277880, 3487855, 3786814, 3986120, 4437412, 4589032, 4670960, 5546765, 5580568, 5736290, 6339160, 6555760, 6975710, 7573628, 7972240, 8874824, 9178064, 9467035, 11093530, 11161136, 11472580, 12678320, 13253849, 13951420, 15147256, 17749648, 18934070, 22187060, 22945160, 26507698, 27902840, 30294512, 35974733, 37868140, 44374120, 45890320, 53015396, 55805680, 66269245, 71949466, 75736280, 88748240, 106030792, 132538490, 143898932, 151472560, 179873665, 212061584, 251823131, 265076980, 287797864, 359747330, 503646262, 530153960, 575595728, 719494660, 1007292524, 1060307920, 1259115655, 1438989320, 2014585048, 2518231310, 2877978640, 4029170096, 5036462620, 10072925240, 20145850480]

約数ペア:

[(1, 20145850480), (2, 10072925240), (4, 5036462620), (5, 4029170096), (7, 2877978640), (8, 2518231310), (10, 2014585048), (14, 1438989320), (16, 1259115655), (19, 1060307920), (20, 1007292524), (28, 719494660), (35, 575595728), (38, 530153960), (40, 503646262), (56, 359747330), (70, 287797864), (76, 265076980), (80, 251823131), (95, 212061584), (112, 179873665), (133, 151472560), (140, 143898932), (152, 132538490), (190, 106030792), (227, 88748240), (266, 75736280), (280, 71949466), (304, 66269245), (361, 55805680), (380, 53015396), (439, 45890320), (454, 44374120), (532, 37868140), (560, 35974733), (665, 30294512), (722, 27902840), (760, 26507698), (878, 22945160), (908, 22187060), (1064, 18934070), (1135, 17749648), (1330, 15147256), (1444, 13951420), (1520, 13253849), (1589, 12678320), (1756, 11472580), (1805, 11161136), (1816, 11093530), (2128, 9467035), (2195, 9178064), (2270, 8874824), (2527, 7972240), (2660, 7573628), (2888, 6975710), (3073, 6555760), (3178, 6339160), (3512, 5736290), (3610, 5580568), (3632, 5546765), (4313, 4670960), (4390, 4589032), (4540, 4437412), (5054, 3986120), (5320, 3786814), (5776, 3487855), (6146, 3277880), (6356, 3169580), (7024, 2868145), (7220, 2790284), (7945, 2535664), (8341, 2415280), (8626, 2335480), (8780, 2294516), (9080, 2218706), (10108, 1993060), (10640, 1893407), (12292, 1638940), (12635, 1594448), (12712, 1584790), (14440, 1395142), (15365, 1311152), (15890, 1267832), (16682, 1207640), (17252, 1167740), (17560, 1147258), (18160, 1109353), (20216, 996530), (21565, 934192), (24584, 819470), (25270, 797224), (25424, 792395), (28880, 697571), (30191, 667280), (30730, 655576), (31780, 633916), (33364, 603820), (34504, 583870), (35120, 573629), (40432, 498265), (41705, 483056), (43130, 467096), (49168, 409735), (50540, 398612), (58387, 345040), (60382, 333640), (61460, 327788), (63560, 316958), (66728, 301910), (69008, 291935), (81947, 245840), (83410, 241528), (86260, 233548), (99653, 202160), (101080, 199306), (116774, 172520), (120764, 166820), (122920, 163894), (127120, 158479), (133456, 150955)]