388809316

素因数分解:

$2^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{719}}^1$

素因数の和:857

約数の個数: 72

約数和(自身を含む): 827366400

約数和(自身を除く): 438557084

約数列:

[1, 2, 4, 7, 14, 28, 31, 49, 62, 89, 98, 124, 178, 196, 217, 356, 434, 623, 719, 868, 1246, 1438, 1519, 2492, 2759, 2876, 3038, 4361, 5033, 5518, 6076, 8722, 10066, 11036, 17444, 19313, 20132, 22289, 35231, 38626, 44578, 63991, 70462, 77252, 89156, 127982, 135191, 140924, 156023, 255964, 270382, 312046, 447937, 540764, 624092, 895874, 1092161, 1791748, 1983721, 2184322, 3135559, 3967442, 4368644, 6271118, 7934884, 12542236, 13886047, 27772094, 55544188, 97202329, 194404658, 388809316]

約数ペア:

[(1, 388809316), (2, 194404658), (4, 97202329), (7, 55544188), (14, 27772094), (28, 13886047), (31, 12542236), (49, 7934884), (62, 6271118), (89, 4368644), (98, 3967442), (124, 3135559), (178, 2184322), (196, 1983721), (217, 1791748), (356, 1092161), (434, 895874), (623, 624092), (719, 540764), (868, 447937), (1246, 312046), (1438, 270382), (1519, 255964), (2492, 156023), (2759, 140924), (2876, 135191), (3038, 127982), (4361, 89156), (5033, 77252), (5518, 70462), (6076, 63991), (8722, 44578), (10066, 38626), (11036, 35231), (17444, 22289), (19313, 20132)]