1989874655

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{4861}}^1$

素因数の和:5055

約数の個数: 32

約数和(自身を含む): 2613811200

約数和(自身を除く): 623936545

約数列:

[1, 5, 19, 31, 95, 139, 155, 589, 695, 2641, 2945, 4309, 4861, 13205, 21545, 24305, 81871, 92359, 150691, 409355, 461795, 675679, 753455, 2863129, 3378395, 12837901, 14315645, 20946049, 64189505, 104730245, 397974931, 1989874655]

約数ペア:

[(1, 1989874655), (5, 397974931), (19, 104730245), (31, 64189505), (95, 20946049), (139, 14315645), (155, 12837901), (589, 3378395), (695, 2863129), (2641, 753455), (2945, 675679), (4309, 461795), (4861, 409355), (13205, 150691), (21545, 92359), (24305, 81871)]