77821120

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1439}}^1$

素因数の和:1482

約数の個数: 84

約数和(自身を含む): 200802240

約数和(自身を除く): 122981120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 169, 208, 260, 320, 338, 416, 520, 676, 832, 845, 1040, 1352, 1439, 1690, 2080, 2704, 2878, 3380, 4160, 5408, 5756, 6760, 7195, 10816, 11512, 13520, 14390, 18707, 23024, 27040, 28780, 37414, 46048, 54080, 57560, 74828, 92096, 93535, 115120, 149656, 187070, 230240, 243191, 299312, 374140, 460480, 486382, 598624, 748280, 972764, 1197248, 1215955, 1496560, 1945528, 2431910, 2993120, 3891056, 4863820, 5986240, 7782112, 9727640, 15564224, 19455280, 38910560, 77821120]

約数ペア:

[(1, 77821120), (2, 38910560), (4, 19455280), (5, 15564224), (8, 9727640), (10, 7782112), (13, 5986240), (16, 4863820), (20, 3891056), (26, 2993120), (32, 2431910), (40, 1945528), (52, 1496560), (64, 1215955), (65, 1197248), (80, 972764), (104, 748280), (130, 598624), (160, 486382), (169, 460480), (208, 374140), (260, 299312), (320, 243191), (338, 230240), (416, 187070), (520, 149656), (676, 115120), (832, 93535), (845, 92096), (1040, 74828), (1352, 57560), (1439, 54080), (1690, 46048), (2080, 37414), (2704, 28780), (2878, 27040), (3380, 23024), (4160, 18707), (5408, 14390), (5756, 13520), (6760, 11512), (7195, 10816)]