1290328

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{653}}^1$

素因数の和:691

約数の個数: 32

約数和(自身を含む): 2746800

約数和(自身を除く): 1456472

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 653, 988, 1306, 1976, 2612, 5224, 8489, 12407, 16978, 24814, 33956, 49628, 67912, 99256, 161291, 322582, 645164, 1290328]

約数ペア:

[(1, 1290328), (2, 645164), (4, 322582), (8, 161291), (13, 99256), (19, 67912), (26, 49628), (38, 33956), (52, 24814), (76, 16978), (104, 12407), (152, 8489), (247, 5224), (494, 2612), (653, 1976), (988, 1306)]