66759880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2137}}^1$

素因数の和:2230

約数の個数: 64

約数和(自身を含む): 166250880

約数和(自身を除く): 99491000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 71, 88, 110, 142, 220, 284, 355, 440, 568, 710, 781, 1420, 1562, 2137, 2840, 3124, 3905, 4274, 6248, 7810, 8548, 10685, 15620, 17096, 21370, 23507, 31240, 42740, 47014, 85480, 94028, 117535, 151727, 188056, 235070, 303454, 470140, 606908, 758635, 940280, 1213816, 1517270, 1668997, 3034540, 3337994, 6069080, 6675988, 8344985, 13351976, 16689970, 33379940, 66759880]

約数ペア:

[(1, 66759880), (2, 33379940), (4, 16689970), (5, 13351976), (8, 8344985), (10, 6675988), (11, 6069080), (20, 3337994), (22, 3034540), (40, 1668997), (44, 1517270), (55, 1213816), (71, 940280), (88, 758635), (110, 606908), (142, 470140), (220, 303454), (284, 235070), (355, 188056), (440, 151727), (568, 117535), (710, 94028), (781, 85480), (1420, 47014), (1562, 42740), (2137, 31240), (2840, 23507), (3124, 21370), (3905, 17096), (4274, 15620), (6248, 10685), (7810, 8548)]