81439704

素因数分解:

$2^3\times 3^2\times {\mathrm{311}}^1\times {\mathrm{3637}}^1$

素因数の和:3960

約数の個数: 48

約数和(自身を含む): 221335920

約数和(自身を除く): 139896216

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 311, 622, 933, 1244, 1866, 2488, 2799, 3637, 3732, 5598, 7274, 7464, 10911, 11196, 14548, 21822, 22392, 29096, 32733, 43644, 65466, 87288, 130932, 261864, 1131107, 2262214, 3393321, 4524428, 6786642, 9048856, 10179963, 13573284, 20359926, 27146568, 40719852, 81439704]

約数ペア:

[(1, 81439704), (2, 40719852), (3, 27146568), (4, 20359926), (6, 13573284), (8, 10179963), (9, 9048856), (12, 6786642), (18, 4524428), (24, 3393321), (36, 2262214), (72, 1131107), (311, 261864), (622, 130932), (933, 87288), (1244, 65466), (1866, 43644), (2488, 32733), (2799, 29096), (3637, 22392), (3732, 21822), (5598, 14548), (7274, 11196), (7464, 10911)]