648128

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1$

素因数の和:85

約数の個数: 56

約数和(自身を含む): 1493520

約数和(自身を除く): 845392

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 41, 52, 64, 76, 82, 104, 152, 164, 208, 247, 304, 328, 416, 494, 533, 608, 656, 779, 832, 988, 1066, 1216, 1312, 1558, 1976, 2132, 2624, 3116, 3952, 4264, 6232, 7904, 8528, 10127, 12464, 15808, 17056, 20254, 24928, 34112, 40508, 49856, 81016, 162032, 324064, 648128]

約数ペア:

[(1, 648128), (2, 324064), (4, 162032), (8, 81016), (13, 49856), (16, 40508), (19, 34112), (26, 24928), (32, 20254), (38, 17056), (41, 15808), (52, 12464), (64, 10127), (76, 8528), (82, 7904), (104, 6232), (152, 4264), (164, 3952), (208, 3116), (247, 2624), (304, 2132), (328, 1976), (416, 1558), (494, 1312), (533, 1216), (608, 1066), (656, 988), (779, 832)]