20495650

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1889}}^1$

素因数の和:1939

約数の個数: 48

約数和(自身を含む): 44997120

約数和(自身を除く): 24501470

約数列:

[1, 2, 5, 7, 10, 14, 25, 31, 35, 50, 62, 70, 155, 175, 217, 310, 350, 434, 775, 1085, 1550, 1889, 2170, 3778, 5425, 9445, 10850, 13223, 18890, 26446, 47225, 58559, 66115, 94450, 117118, 132230, 292795, 330575, 409913, 585590, 661150, 819826, 1463975, 2049565, 2927950, 4099130, 10247825, 20495650]

約数ペア:

[(1, 20495650), (2, 10247825), (5, 4099130), (7, 2927950), (10, 2049565), (14, 1463975), (25, 819826), (31, 661150), (35, 585590), (50, 409913), (62, 330575), (70, 292795), (155, 132230), (175, 117118), (217, 94450), (310, 66115), (350, 58559), (434, 47225), (775, 26446), (1085, 18890), (1550, 13223), (1889, 10850), (2170, 9445), (3778, 5425)]