64243760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1289}}^1$

素因数の和:1398

約数の個数: 80

約数和(自身を含む): 172756800

約数和(自身を除く): 108513040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 89, 112, 140, 178, 280, 356, 445, 560, 623, 712, 890, 1246, 1289, 1424, 1780, 2492, 2578, 3115, 3560, 4984, 5156, 6230, 6445, 7120, 9023, 9968, 10312, 12460, 12890, 18046, 20624, 24920, 25780, 36092, 45115, 49840, 51560, 72184, 90230, 103120, 114721, 144368, 180460, 229442, 360920, 458884, 573605, 721840, 803047, 917768, 1147210, 1606094, 1835536, 2294420, 3212188, 4015235, 4588840, 6424376, 8030470, 9177680, 12848752, 16060940, 32121880, 64243760]

約数ペア:

[(1, 64243760), (2, 32121880), (4, 16060940), (5, 12848752), (7, 9177680), (8, 8030470), (10, 6424376), (14, 4588840), (16, 4015235), (20, 3212188), (28, 2294420), (35, 1835536), (40, 1606094), (56, 1147210), (70, 917768), (80, 803047), (89, 721840), (112, 573605), (140, 458884), (178, 360920), (280, 229442), (356, 180460), (445, 144368), (560, 114721), (623, 103120), (712, 90230), (890, 72184), (1246, 51560), (1289, 49840), (1424, 45115), (1780, 36092), (2492, 25780), (2578, 24920), (3115, 20624), (3560, 18046), (4984, 12890), (5156, 12460), (6230, 10312), (6445, 9968), (7120, 9023)]