20175515

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{2447}}^1$

素因数の和:2566

約数の個数: 16

約数和(自身を含む): 25909632

約数和(自身を除く): 5734117

約数列:

[1, 5, 17, 85, 97, 485, 1649, 2447, 8245, 12235, 41599, 207995, 237359, 1186795, 4035103, 20175515]

約数ペア:

[(1, 20175515), (5, 4035103), (17, 1186795), (85, 237359), (97, 207995), (485, 41599), (1649, 12235), (2447, 8245)]