9990695

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:275

約数の個数: 32

約数和(自身を含む): 14333760

約数和(自身を除く): 4343065

約数列:

[1, 5, 11, 13, 55, 65, 89, 143, 157, 445, 715, 785, 979, 1157, 1727, 2041, 4895, 5785, 8635, 10205, 12727, 13973, 22451, 63635, 69865, 112255, 153703, 181649, 768515, 908245, 1998139, 9990695]

約数ペア:

[(1, 9990695), (5, 1998139), (11, 908245), (13, 768515), (55, 181649), (65, 153703), (89, 112255), (143, 69865), (157, 63635), (445, 22451), (715, 13973), (785, 12727), (979, 10205), (1157, 8635), (1727, 5785), (2041, 4895)]