20121247965

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{475511}}^1$

素因数の和:475570

約数の個数: 64

約数和(自身を含む): 40901640192

約数和(自身を除く): 20780392227

約数列:

[1, 3, 5, 7, 13, 15, 21, 31, 35, 39, 65, 91, 93, 105, 155, 195, 217, 273, 403, 455, 465, 651, 1085, 1209, 1365, 2015, 2821, 3255, 6045, 8463, 14105, 42315, 475511, 1426533, 2377555, 3328577, 6181643, 7132665, 9985731, 14740841, 16642885, 18544929, 30908215, 43271501, 44222523, 49928655, 73704205, 92724645, 103185887, 129814503, 191630933, 216357505, 221112615, 309557661, 515929435, 574892799, 649072515, 958154665, 1341416531, 1547788305, 2874463995, 4024249593, 6707082655, 20121247965]

約数ペア:

[(1, 20121247965), (3, 6707082655), (5, 4024249593), (7, 2874463995), (13, 1547788305), (15, 1341416531), (21, 958154665), (31, 649072515), (35, 574892799), (39, 515929435), (65, 309557661), (91, 221112615), (93, 216357505), (105, 191630933), (155, 129814503), (195, 103185887), (217, 92724645), (273, 73704205), (403, 49928655), (455, 44222523), (465, 43271501), (651, 30908215), (1085, 18544929), (1209, 16642885), (1365, 14740841), (2015, 9985731), (2821, 7132665), (3255, 6181643), (6045, 3328577), (8463, 2377555), (14105, 1426533), (42315, 475511)]