16788825

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:159

約数の個数: 72

約数和(自身を含む): 32497920

約数和(自身を除く): 15709095

約数列:

[1, 3, 5, 9, 15, 25, 29, 31, 45, 75, 83, 87, 93, 145, 155, 225, 249, 261, 279, 415, 435, 465, 725, 747, 775, 899, 1245, 1305, 1395, 2075, 2175, 2325, 2407, 2573, 2697, 3735, 4495, 6225, 6525, 6975, 7221, 7719, 8091, 12035, 12865, 13485, 18675, 21663, 22475, 23157, 36105, 38595, 40455, 60175, 64325, 67425, 74617, 108315, 115785, 180525, 192975, 202275, 223851, 373085, 541575, 578925, 671553, 1119255, 1865425, 3357765, 5596275, 16788825]

約数ペア:

[(1, 16788825), (3, 5596275), (5, 3357765), (9, 1865425), (15, 1119255), (25, 671553), (29, 578925), (31, 541575), (45, 373085), (75, 223851), (83, 202275), (87, 192975), (93, 180525), (145, 115785), (155, 108315), (225, 74617), (249, 67425), (261, 64325), (279, 60175), (415, 40455), (435, 38595), (465, 36105), (725, 23157), (747, 22475), (775, 21663), (899, 18675), (1245, 13485), (1305, 12865), (1395, 12035), (2075, 8091), (2175, 7719), (2325, 7221), (2407, 6975), (2573, 6525), (2697, 6225), (3735, 4495)]