199895865

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{331}}^1$

素因数の和:534

約数の個数: 64

約数和(自身を含む): 365890560

約数和(自身を除く): 165994695

約数列:

[1, 3, 5, 13, 15, 19, 39, 57, 65, 95, 163, 195, 247, 285, 331, 489, 741, 815, 993, 1235, 1655, 2119, 2445, 3097, 3705, 4303, 4965, 6289, 6357, 9291, 10595, 12909, 15485, 18867, 21515, 31445, 31785, 40261, 46455, 53953, 64545, 81757, 94335, 120783, 161859, 201305, 245271, 269765, 408785, 603915, 701389, 809295, 1025107, 1226355, 2104167, 3075321, 3506945, 5125535, 10520835, 13326391, 15376605, 39979173, 66631955, 199895865]

約数ペア:

[(1, 199895865), (3, 66631955), (5, 39979173), (13, 15376605), (15, 13326391), (19, 10520835), (39, 5125535), (57, 3506945), (65, 3075321), (95, 2104167), (163, 1226355), (195, 1025107), (247, 809295), (285, 701389), (331, 603915), (489, 408785), (741, 269765), (815, 245271), (993, 201305), (1235, 161859), (1655, 120783), (2119, 94335), (2445, 81757), (3097, 64545), (3705, 53953), (4303, 46455), (4965, 40261), (6289, 31785), (6357, 31445), (9291, 21515), (10595, 18867), (12909, 15485)]