12216975

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 21561120

約数和(自身を除く): 9344145

約数列:

[1, 3, 5, 15, 25, 29, 41, 75, 87, 123, 137, 145, 205, 411, 435, 615, 685, 725, 1025, 1189, 2055, 2175, 3075, 3425, 3567, 3973, 5617, 5945, 10275, 11919, 16851, 17835, 19865, 28085, 29725, 59595, 84255, 89175, 99325, 140425, 162893, 297975, 421275, 488679, 814465, 2443395, 4072325, 12216975]

約数ペア:

[(1, 12216975), (3, 4072325), (5, 2443395), (15, 814465), (25, 488679), (29, 421275), (41, 297975), (75, 162893), (87, 140425), (123, 99325), (137, 89175), (145, 84255), (205, 59595), (411, 29725), (435, 28085), (615, 19865), (685, 17835), (725, 16851), (1025, 11919), (1189, 10275), (2055, 5945), (2175, 5617), (3075, 3973), (3425, 3567)]