77816440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{569}}^1$

素因数の和:856

約数の個数: 64

約数和(自身を含む): 189604800

約数和(自身を除く): 111788360

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 263, 520, 526, 569, 1052, 1138, 1315, 2104, 2276, 2630, 2845, 3419, 4552, 5260, 5690, 6838, 7397, 10520, 11380, 13676, 14794, 17095, 22760, 27352, 29588, 34190, 36985, 59176, 68380, 73970, 136760, 147940, 149647, 295880, 299294, 598588, 748235, 1197176, 1496470, 1945411, 2992940, 3890822, 5985880, 7781644, 9727055, 15563288, 19454110, 38908220, 77816440]

約数ペア:

[(1, 77816440), (2, 38908220), (4, 19454110), (5, 15563288), (8, 9727055), (10, 7781644), (13, 5985880), (20, 3890822), (26, 2992940), (40, 1945411), (52, 1496470), (65, 1197176), (104, 748235), (130, 598588), (260, 299294), (263, 295880), (520, 149647), (526, 147940), (569, 136760), (1052, 73970), (1138, 68380), (1315, 59176), (2104, 36985), (2276, 34190), (2630, 29588), (2845, 27352), (3419, 22760), (4552, 17095), (5260, 14794), (5690, 13676), (6838, 11380), (7397, 10520)]