20642432

素因数分解:

$2^7\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1$

素因数の和:193

約数の個数: 64

約数和(自身を含む): 43696800

約数和(自身を除く): 23054368

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 67, 83, 116, 128, 134, 166, 232, 268, 332, 464, 536, 664, 928, 1072, 1328, 1856, 1943, 2144, 2407, 2656, 3712, 3886, 4288, 4814, 5312, 5561, 7772, 8576, 9628, 10624, 11122, 15544, 19256, 22244, 31088, 38512, 44488, 62176, 77024, 88976, 124352, 154048, 161269, 177952, 248704, 308096, 322538, 355904, 645076, 711808, 1290152, 2580304, 5160608, 10321216, 20642432]

約数ペア:

[(1, 20642432), (2, 10321216), (4, 5160608), (8, 2580304), (16, 1290152), (29, 711808), (32, 645076), (58, 355904), (64, 322538), (67, 308096), (83, 248704), (116, 177952), (128, 161269), (134, 154048), (166, 124352), (232, 88976), (268, 77024), (332, 62176), (464, 44488), (536, 38512), (664, 31088), (928, 22244), (1072, 19256), (1328, 15544), (1856, 11122), (1943, 10624), (2144, 9628), (2407, 8576), (2656, 7772), (3712, 5561), (3886, 5312), (4288, 4814)]