16378475

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^2\times {\mathrm{41}}^1$

素因数の和:128

約数の個数: 36

約数和(自身を含む): 22680840

約数和(自身を除く): 6302365

約数列:

[1, 5, 19, 25, 29, 41, 95, 145, 205, 475, 551, 725, 779, 841, 1025, 1189, 2755, 3895, 4205, 5945, 13775, 15979, 19475, 21025, 22591, 29725, 34481, 79895, 112955, 172405, 399475, 564775, 655139, 862025, 3275695, 16378475]

約数ペア:

[(1, 16378475), (5, 3275695), (19, 862025), (25, 655139), (29, 564775), (41, 399475), (95, 172405), (145, 112955), (205, 79895), (475, 34481), (551, 29725), (725, 22591), (779, 21025), (841, 19475), (1025, 15979), (1189, 13775), (2755, 5945), (3895, 4205)]