68758285

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:321

約数の個数: 32

約数和(自身を含む): 90396000

約数和(自身を除く): 21637715

約数列:

[1, 5, 17, 61, 85, 89, 149, 305, 445, 745, 1037, 1513, 2533, 5185, 5429, 7565, 9089, 12665, 13261, 27145, 45445, 66305, 92293, 154513, 225437, 461465, 772565, 808921, 1127185, 4044605, 13751657, 68758285]

約数ペア:

[(1, 68758285), (5, 13751657), (17, 4044605), (61, 1127185), (85, 808921), (89, 772565), (149, 461465), (305, 225437), (445, 154513), (745, 92293), (1037, 66305), (1513, 45445), (2533, 27145), (5185, 13261), (5429, 12665), (7565, 9089)]