20804501235

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{307}}^1\times {\mathrm{10939}}^1$

素因数の和:11320

約数の個数: 64

約数和(自身を含む): 38816870400

約数和(自身を除く): 18012369165

約数列:

[1, 3, 5, 7, 15, 21, 35, 59, 105, 177, 295, 307, 413, 885, 921, 1239, 1535, 2065, 2149, 4605, 6195, 6447, 10745, 10939, 18113, 32235, 32817, 54339, 54695, 76573, 90565, 126791, 164085, 229719, 271695, 380373, 382865, 633955, 645401, 1148595, 1901865, 1936203, 3227005, 3358273, 4517807, 9681015, 10074819, 13553421, 16791365, 22589035, 23507911, 50374095, 67767105, 70523733, 117539555, 198138107, 352618665, 594414321, 990690535, 1386966749, 2972071605, 4160900247, 6934833745, 20804501235]

約数ペア:

[(1, 20804501235), (3, 6934833745), (5, 4160900247), (7, 2972071605), (15, 1386966749), (21, 990690535), (35, 594414321), (59, 352618665), (105, 198138107), (177, 117539555), (295, 70523733), (307, 67767105), (413, 50374095), (885, 23507911), (921, 22589035), (1239, 16791365), (1535, 13553421), (2065, 10074819), (2149, 9681015), (4605, 4517807), (6195, 3358273), (6447, 3227005), (10745, 1936203), (10939, 1901865), (18113, 1148595), (32235, 645401), (32817, 633955), (54339, 382865), (54695, 380373), (76573, 271695), (90565, 229719), (126791, 164085)]