64893520

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{12107}}^1$

素因数の和:12187

約数の個数: 40

約数和(自身を含む): 153141984

約数和(自身を除く): 88248464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 5360, 12107, 24214, 48428, 60535, 96856, 121070, 193712, 242140, 484280, 811169, 968560, 1622338, 3244676, 4055845, 6489352, 8111690, 12978704, 16223380, 32446760, 64893520]

約数ペア:

[(1, 64893520), (2, 32446760), (4, 16223380), (5, 12978704), (8, 8111690), (10, 6489352), (16, 4055845), (20, 3244676), (40, 1622338), (67, 968560), (80, 811169), (134, 484280), (268, 242140), (335, 193712), (536, 121070), (670, 96856), (1072, 60535), (1340, 48428), (2680, 24214), (5360, 12107)]