19450120

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{6661}}^1$

素因数の和:6745

約数の個数: 32

約数和(自身を含む): 44368920

約数和(自身を除く): 24918800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 6661, 13322, 26644, 33305, 53288, 66610, 133220, 266440, 486253, 972506, 1945012, 2431265, 3890024, 4862530, 9725060, 19450120]

約数ペア:

[(1, 19450120), (2, 9725060), (4, 4862530), (5, 3890024), (8, 2431265), (10, 1945012), (20, 972506), (40, 486253), (73, 266440), (146, 133220), (292, 66610), (365, 53288), (584, 33305), (730, 26644), (1460, 13322), (2920, 6661)]