7991620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4391}}^1$

素因数の和:4420

約数の個数: 48

約数和(自身を含む): 20659968

約数和(自身を除く): 12668348

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 4391, 8782, 17564, 21955, 30737, 43910, 57083, 61474, 87820, 114166, 122948, 153685, 228332, 285415, 307370, 399581, 570830, 614740, 799162, 1141660, 1598324, 1997905, 3995810, 7991620]

約数ペア:

[(1, 7991620), (2, 3995810), (4, 1997905), (5, 1598324), (7, 1141660), (10, 799162), (13, 614740), (14, 570830), (20, 399581), (26, 307370), (28, 285415), (35, 228332), (52, 153685), (65, 122948), (70, 114166), (91, 87820), (130, 61474), (140, 57083), (182, 43910), (260, 30737), (364, 21955), (455, 17564), (910, 8782), (1820, 4391)]