211840360

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:251

約数の個数: 128

約数和(自身を含む): 524620800

約数和(自身を除く): 312780440

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 31, 40, 43, 58, 62, 86, 116, 124, 137, 145, 155, 172, 215, 232, 248, 274, 290, 310, 344, 430, 548, 580, 620, 685, 860, 899, 1096, 1160, 1240, 1247, 1333, 1370, 1720, 1798, 2494, 2666, 2740, 3596, 3973, 4247, 4495, 4988, 5332, 5480, 5891, 6235, 6665, 7192, 7946, 8494, 8990, 9976, 10664, 11782, 12470, 13330, 15892, 16988, 17980, 19865, 21235, 23564, 24940, 26660, 29455, 31784, 33976, 35960, 38657, 39730, 42470, 47128, 49880, 53320, 58910, 77314, 79460, 84940, 117820, 123163, 154628, 158920, 169880, 170839, 182621, 193285, 235640, 246326, 309256, 341678, 365242, 386570, 492652, 615815, 683356, 730484, 773140, 854195, 913105, 985304, 1231630, 1366712, 1460968, 1546280, 1708390, 1826210, 2463260, 3416780, 3652420, 4926520, 5296009, 6833560, 7304840, 10592018, 21184036, 26480045, 42368072, 52960090, 105920180, 211840360]

約数ペア:

[(1, 211840360), (2, 105920180), (4, 52960090), (5, 42368072), (8, 26480045), (10, 21184036), (20, 10592018), (29, 7304840), (31, 6833560), (40, 5296009), (43, 4926520), (58, 3652420), (62, 3416780), (86, 2463260), (116, 1826210), (124, 1708390), (137, 1546280), (145, 1460968), (155, 1366712), (172, 1231630), (215, 985304), (232, 913105), (248, 854195), (274, 773140), (290, 730484), (310, 683356), (344, 615815), (430, 492652), (548, 386570), (580, 365242), (620, 341678), (685, 309256), (860, 246326), (899, 235640), (1096, 193285), (1160, 182621), (1240, 170839), (1247, 169880), (1333, 158920), (1370, 154628), (1720, 123163), (1798, 117820), (2494, 84940), (2666, 79460), (2740, 77314), (3596, 58910), (3973, 53320), (4247, 49880), (4495, 47128), (4988, 42470), (5332, 39730), (5480, 38657), (5891, 35960), (6235, 33976), (6665, 31784), (7192, 29455), (7946, 26660), (8494, 24940), (8990, 23564), (9976, 21235), (10664, 19865), (11782, 17980), (12470, 16988), (13330, 15892)]