81438396

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^3\times {\mathrm{3089}}^1$

素因数の和:3135

約数の個数: 48

約数和(自身を含む): 205917600

約数和(自身を除く): 124479204

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 169, 338, 507, 676, 1014, 2028, 2197, 3089, 4394, 6178, 6591, 8788, 9267, 12356, 13182, 18534, 26364, 37068, 40157, 80314, 120471, 160628, 240942, 481884, 522041, 1044082, 1566123, 2088164, 3132246, 6264492, 6786533, 13573066, 20359599, 27146132, 40719198, 81438396]

約数ペア:

[(1, 81438396), (2, 40719198), (3, 27146132), (4, 20359599), (6, 13573066), (12, 6786533), (13, 6264492), (26, 3132246), (39, 2088164), (52, 1566123), (78, 1044082), (156, 522041), (169, 481884), (338, 240942), (507, 160628), (676, 120471), (1014, 80314), (2028, 40157), (2197, 37068), (3089, 26364), (4394, 18534), (6178, 13182), (6591, 12356), (8788, 9267)]