77857780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3889}}^1$

素因数の和:3929

約数の個数: 96

約数和(自身を含む): 219582720

約数和(自身を除く): 141724940

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 52, 55, 65, 70, 77, 91, 110, 130, 140, 143, 154, 182, 220, 260, 286, 308, 364, 385, 455, 572, 715, 770, 910, 1001, 1430, 1540, 1820, 2002, 2860, 3889, 4004, 5005, 7778, 10010, 15556, 19445, 20020, 27223, 38890, 42779, 50557, 54446, 77780, 85558, 101114, 108892, 136115, 171116, 202228, 213895, 252785, 272230, 299453, 353899, 427790, 505570, 544460, 556127, 598906, 707798, 855580, 1011140, 1112254, 1197812, 1415596, 1497265, 1769495, 2224508, 2780635, 2994530, 3538990, 3892889, 5561270, 5989060, 7077980, 7785778, 11122540, 15571556, 19464445, 38928890, 77857780]

約数ペア:

[(1, 77857780), (2, 38928890), (4, 19464445), (5, 15571556), (7, 11122540), (10, 7785778), (11, 7077980), (13, 5989060), (14, 5561270), (20, 3892889), (22, 3538990), (26, 2994530), (28, 2780635), (35, 2224508), (44, 1769495), (52, 1497265), (55, 1415596), (65, 1197812), (70, 1112254), (77, 1011140), (91, 855580), (110, 707798), (130, 598906), (140, 556127), (143, 544460), (154, 505570), (182, 427790), (220, 353899), (260, 299453), (286, 272230), (308, 252785), (364, 213895), (385, 202228), (455, 171116), (572, 136115), (715, 108892), (770, 101114), (910, 85558), (1001, 77780), (1430, 54446), (1540, 50557), (1820, 42779), (2002, 38890), (2860, 27223), (3889, 20020), (4004, 19445), (5005, 15556), (7778, 10010)]