161520970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{509}}^1\times {\mathrm{2441}}^1$

素因数の和:2970

約数の個数: 32

約数和(自身を含む): 313845840

約数和(自身を除く): 152324870

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 509, 1018, 2441, 2545, 4882, 5090, 6617, 12205, 13234, 24410, 31733, 33085, 63466, 66170, 158665, 317330, 1242469, 2484938, 6212345, 12424690, 16152097, 32304194, 80760485, 161520970]

約数ペア:

[(1, 161520970), (2, 80760485), (5, 32304194), (10, 16152097), (13, 12424690), (26, 6212345), (65, 2484938), (130, 1242469), (509, 317330), (1018, 158665), (2441, 66170), (2545, 63466), (4882, 33085), (5090, 31733), (6617, 24410), (12205, 13234)]