20442675

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{349}}^1$

素因数の和:444

約数の個数: 48

約数和(自身を含む): 37497600

約数和(自身を除く): 17054925

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 71, 75, 165, 213, 275, 349, 355, 781, 825, 1047, 1065, 1745, 1775, 2343, 3839, 3905, 5235, 5325, 8725, 11517, 11715, 19195, 19525, 24779, 26175, 57585, 58575, 74337, 95975, 123895, 272569, 287925, 371685, 619475, 817707, 1362845, 1858425, 4088535, 6814225, 20442675]

約数ペア:

[(1, 20442675), (3, 6814225), (5, 4088535), (11, 1858425), (15, 1362845), (25, 817707), (33, 619475), (55, 371685), (71, 287925), (75, 272569), (165, 123895), (213, 95975), (275, 74337), (349, 58575), (355, 57585), (781, 26175), (825, 24779), (1047, 19525), (1065, 19195), (1745, 11715), (1775, 11517), (2343, 8725), (3839, 5325), (3905, 5235)]