19578645

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{449}}^1$

素因数の和:499

約数の個数: 64

約数和(自身を含む): 38880000

約数和(自身を除く): 19301355

約数列:

[1, 3, 5, 9, 15, 17, 19, 27, 45, 51, 57, 85, 95, 135, 153, 171, 255, 285, 323, 449, 459, 513, 765, 855, 969, 1347, 1615, 2245, 2295, 2565, 2907, 4041, 4845, 6735, 7633, 8531, 8721, 12123, 14535, 20205, 22899, 25593, 38165, 42655, 43605, 60615, 68697, 76779, 114495, 127965, 145027, 206091, 230337, 343485, 383895, 435081, 725135, 1030455, 1151685, 1305243, 2175405, 3915729, 6526215, 19578645]

約数ペア:

[(1, 19578645), (3, 6526215), (5, 3915729), (9, 2175405), (15, 1305243), (17, 1151685), (19, 1030455), (27, 725135), (45, 435081), (51, 383895), (57, 343485), (85, 230337), (95, 206091), (135, 145027), (153, 127965), (171, 114495), (255, 76779), (285, 68697), (323, 60615), (449, 43605), (459, 42655), (513, 38165), (765, 25593), (855, 22899), (969, 20205), (1347, 14535), (1615, 12123), (2245, 8721), (2295, 8531), (2565, 7633), (2907, 6735), (4041, 4845)]