20161958405

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{937}}^1\times {\mathrm{4787}}^1$

素因数の和:5789

約数の個数: 32

約数和(自身を含む): 25868989440

約数和(自身を除く): 5707031035

約数列:

[1, 5, 29, 31, 145, 155, 899, 937, 4495, 4685, 4787, 23935, 27173, 29047, 135865, 138823, 145235, 148397, 694115, 741985, 842363, 4211815, 4303513, 4485419, 21517565, 22427095, 130077151, 139047989, 650385755, 695239945, 4032391681, 20161958405]

約数ペア:

[(1, 20161958405), (5, 4032391681), (29, 695239945), (31, 650385755), (145, 139047989), (155, 130077151), (899, 22427095), (937, 21517565), (4495, 4485419), (4685, 4303513), (4787, 4211815), (23935, 842363), (27173, 741985), (29047, 694115), (135865, 148397), (138823, 145235)]