9920170

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{557}}^1$

素因数の和:714

約数の個数: 32

約数和(自身を含む): 19405008

約数和(自身を除く): 9484838

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 137, 274, 557, 685, 1114, 1370, 1781, 2785, 3562, 5570, 7241, 8905, 14482, 17810, 36205, 72410, 76309, 152618, 381545, 763090, 992017, 1984034, 4960085, 9920170]

約数ペア:

[(1, 9920170), (2, 4960085), (5, 1984034), (10, 992017), (13, 763090), (26, 381545), (65, 152618), (130, 76309), (137, 72410), (274, 36205), (557, 17810), (685, 14482), (1114, 8905), (1370, 7241), (1781, 5570), (2785, 3562)]