78136884

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{311}}^1\times {\mathrm{997}}^1$

素因数の和:1325

約数の個数: 72

約数和(自身を含む): 226681728

約数和(自身を除く): 148544844

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 311, 622, 933, 997, 1244, 1866, 1994, 2177, 2799, 2991, 3732, 3988, 4354, 5598, 5982, 6531, 6979, 8708, 8973, 11196, 11964, 13062, 13958, 17946, 19593, 20937, 26124, 27916, 35892, 39186, 41874, 62811, 78372, 83748, 125622, 251244, 310067, 620134, 930201, 1240268, 1860402, 2170469, 2790603, 3720804, 4340938, 5581206, 6511407, 8681876, 11162412, 13022814, 19534221, 26045628, 39068442, 78136884]

約数ペア:

[(1, 78136884), (2, 39068442), (3, 26045628), (4, 19534221), (6, 13022814), (7, 11162412), (9, 8681876), (12, 6511407), (14, 5581206), (18, 4340938), (21, 3720804), (28, 2790603), (36, 2170469), (42, 1860402), (63, 1240268), (84, 930201), (126, 620134), (252, 310067), (311, 251244), (622, 125622), (933, 83748), (997, 78372), (1244, 62811), (1866, 41874), (1994, 39186), (2177, 35892), (2799, 27916), (2991, 26124), (3732, 20937), (3988, 19593), (4354, 17946), (5598, 13958), (5982, 13062), (6531, 11964), (6979, 11196), (8708, 8973)]