20528389395

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1\times {\mathrm{823}}^1$

素因数の和:1153

約数の個数: 96

約数和(自身を含む): 37279816704

約数和(自身を除く): 16751427309

約数列:

[1, 3, 5, 9, 15, 37, 45, 71, 111, 185, 211, 213, 333, 355, 555, 633, 639, 823, 1055, 1065, 1665, 1899, 2469, 2627, 3165, 3195, 4115, 7407, 7807, 7881, 9495, 12345, 13135, 14981, 23421, 23643, 30451, 37035, 39035, 39405, 44943, 58433, 70263, 74905, 91353, 117105, 118215, 134829, 152255, 173653, 175299, 224715, 274059, 292165, 351315, 456765, 520959, 525897, 554297, 674145, 868265, 876495, 1370295, 1562877, 1662891, 2162021, 2604795, 2629485, 2771485, 4988673, 6425161, 6486063, 7814385, 8314455, 10810105, 12329363, 19275483, 19458189, 24943365, 32125805, 32430315, 36988089, 57826449, 61646815, 96377415, 97290945, 110964267, 184940445, 289132245, 456186431, 554821335, 1368559293, 2280932155, 4105677879, 6842796465, 20528389395]

約数ペア:

[(1, 20528389395), (3, 6842796465), (5, 4105677879), (9, 2280932155), (15, 1368559293), (37, 554821335), (45, 456186431), (71, 289132245), (111, 184940445), (185, 110964267), (211, 97290945), (213, 96377415), (333, 61646815), (355, 57826449), (555, 36988089), (633, 32430315), (639, 32125805), (823, 24943365), (1055, 19458189), (1065, 19275483), (1665, 12329363), (1899, 10810105), (2469, 8314455), (2627, 7814385), (3165, 6486063), (3195, 6425161), (4115, 4988673), (7407, 2771485), (7807, 2629485), (7881, 2604795), (9495, 2162021), (12345, 1662891), (13135, 1562877), (14981, 1370295), (23421, 876495), (23643, 868265), (30451, 674145), (37035, 554297), (39035, 525897), (39405, 520959), (44943, 456765), (58433, 351315), (70263, 292165), (74905, 274059), (91353, 224715), (117105, 175299), (118215, 173653), (134829, 152255)]