64571920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1721}}^1$

素因数の和:1808

約数の個数: 80

約数和(自身を含む): 174238848

約数和(自身を除く): 109666928

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 67, 70, 80, 112, 134, 140, 268, 280, 335, 469, 536, 560, 670, 938, 1072, 1340, 1721, 1876, 2345, 2680, 3442, 3752, 4690, 5360, 6884, 7504, 8605, 9380, 12047, 13768, 17210, 18760, 24094, 27536, 34420, 37520, 48188, 60235, 68840, 96376, 115307, 120470, 137680, 192752, 230614, 240940, 461228, 481880, 576535, 807149, 922456, 963760, 1153070, 1614298, 1844912, 2306140, 3228596, 4035745, 4612280, 6457192, 8071490, 9224560, 12914384, 16142980, 32285960, 64571920]

約数ペア:

[(1, 64571920), (2, 32285960), (4, 16142980), (5, 12914384), (7, 9224560), (8, 8071490), (10, 6457192), (14, 4612280), (16, 4035745), (20, 3228596), (28, 2306140), (35, 1844912), (40, 1614298), (56, 1153070), (67, 963760), (70, 922456), (80, 807149), (112, 576535), (134, 481880), (140, 461228), (268, 240940), (280, 230614), (335, 192752), (469, 137680), (536, 120470), (560, 115307), (670, 96376), (938, 68840), (1072, 60235), (1340, 48188), (1721, 37520), (1876, 34420), (2345, 27536), (2680, 24094), (3442, 18760), (3752, 17210), (4690, 13768), (5360, 12047), (6884, 9380), (7504, 8605)]