19595475

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:189

約数の個数: 72

約数和(自身を含む): 38301120

約数和(自身を除く): 18705645

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 47, 51, 75, 85, 109, 141, 153, 225, 235, 255, 327, 423, 425, 545, 705, 765, 799, 981, 1175, 1275, 1635, 1853, 2115, 2397, 2725, 3525, 3825, 3995, 4905, 5123, 5559, 7191, 8175, 9265, 10575, 11985, 15369, 16677, 19975, 24525, 25615, 27795, 35955, 46107, 46325, 59925, 76845, 83385, 87091, 128075, 138975, 179775, 230535, 261273, 384225, 416925, 435455, 783819, 1152675, 1306365, 2177275, 3919095, 6531825, 19595475]

約数ペア:

[(1, 19595475), (3, 6531825), (5, 3919095), (9, 2177275), (15, 1306365), (17, 1152675), (25, 783819), (45, 435455), (47, 416925), (51, 384225), (75, 261273), (85, 230535), (109, 179775), (141, 138975), (153, 128075), (225, 87091), (235, 83385), (255, 76845), (327, 59925), (423, 46325), (425, 46107), (545, 35955), (705, 27795), (765, 25615), (799, 24525), (981, 19975), (1175, 16677), (1275, 15369), (1635, 11985), (1853, 10575), (2115, 9265), (2397, 8175), (2725, 7191), (3525, 5559), (3825, 5123), (3995, 4905)]