20550045

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{283}}^1$

素因数の和:441

約数の個数: 32

約数和(自身を含む): 34025472

約数和(自身を除く): 13475427

約数列:

[1, 3, 5, 15, 47, 103, 141, 235, 283, 309, 515, 705, 849, 1415, 1545, 4245, 4841, 13301, 14523, 24205, 29149, 39903, 66505, 72615, 87447, 145745, 199515, 437235, 1370003, 4110009, 6850015, 20550045]

約数ペア:

[(1, 20550045), (3, 6850015), (5, 4110009), (15, 1370003), (47, 437235), (103, 199515), (141, 145745), (235, 87447), (283, 72615), (309, 66505), (515, 39903), (705, 29149), (849, 24205), (1415, 14523), (1545, 13301), (4245, 4841)]