890160908

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{78887}}^1$

素因数の和:78942

約数の個数: 48

約数和(自身を含む): 1979142144

約数和(自身を除く): 1088981236

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 52, 62, 91, 124, 182, 217, 364, 403, 434, 806, 868, 1612, 2821, 5642, 11284, 78887, 157774, 315548, 552209, 1025531, 1104418, 2051062, 2208836, 2445497, 4102124, 4890994, 7178717, 9781988, 14357434, 17118479, 28714868, 31791461, 34236958, 63582922, 68473916, 127165844, 222540227, 445080454, 890160908]

約数ペア:

[(1, 890160908), (2, 445080454), (4, 222540227), (7, 127165844), (13, 68473916), (14, 63582922), (26, 34236958), (28, 31791461), (31, 28714868), (52, 17118479), (62, 14357434), (91, 9781988), (124, 7178717), (182, 4890994), (217, 4102124), (364, 2445497), (403, 2208836), (434, 2051062), (806, 1104418), (868, 1025531), (1612, 552209), (2821, 315548), (5642, 157774), (11284, 78887)]