64881920

素因数分解:

$2^8\times 5^1\times {\mathrm{173}}^1\times {\mathrm{293}}^1$

素因数の和:487

約数の個数: 72

約数和(自身を含む): 156844296

約数和(自身を除く): 91962376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 173, 256, 293, 320, 346, 586, 640, 692, 865, 1172, 1280, 1384, 1465, 1730, 2344, 2768, 2930, 3460, 4688, 5536, 5860, 6920, 9376, 11072, 11720, 13840, 18752, 22144, 23440, 27680, 37504, 44288, 46880, 50689, 55360, 75008, 93760, 101378, 110720, 187520, 202756, 221440, 253445, 375040, 405512, 506890, 811024, 1013780, 1622048, 2027560, 3244096, 4055120, 6488192, 8110240, 12976384, 16220480, 32440960, 64881920]

約数ペア:

[(1, 64881920), (2, 32440960), (4, 16220480), (5, 12976384), (8, 8110240), (10, 6488192), (16, 4055120), (20, 3244096), (32, 2027560), (40, 1622048), (64, 1013780), (80, 811024), (128, 506890), (160, 405512), (173, 375040), (256, 253445), (293, 221440), (320, 202756), (346, 187520), (586, 110720), (640, 101378), (692, 93760), (865, 75008), (1172, 55360), (1280, 50689), (1384, 46880), (1465, 44288), (1730, 37504), (2344, 27680), (2768, 23440), (2930, 22144), (3460, 18752), (4688, 13840), (5536, 11720), (5860, 11072), (6920, 9376)]