201920425

素因数分解:

$5^2\times 7^2\times {\mathrm{191}}^1\times {\mathrm{863}}^1$

素因数の和:1078

約数の個数: 36

約数和(自身を含む): 293124096

約数和(自身を除く): 91203671

約数列:

[1, 5, 7, 25, 35, 49, 175, 191, 245, 863, 955, 1225, 1337, 4315, 4775, 6041, 6685, 9359, 21575, 30205, 33425, 42287, 46795, 151025, 164833, 211435, 233975, 824165, 1057175, 1153831, 4120825, 5769155, 8076817, 28845775, 40384085, 201920425]

約数ペア:

[(1, 201920425), (5, 40384085), (7, 28845775), (25, 8076817), (35, 5769155), (49, 4120825), (175, 1153831), (191, 1057175), (245, 824165), (863, 233975), (955, 211435), (1225, 164833), (1337, 151025), (4315, 46795), (4775, 42287), (6041, 33425), (6685, 30205), (9359, 21575)]