197471905

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1\times {\mathrm{181}}^1$

素因数の和:441

約数の個数: 32

約数和(自身を含む): 254741760

約数和(自身を除く): 57269855

約数列:

[1, 5, 23, 53, 115, 179, 181, 265, 895, 905, 1219, 4117, 4163, 6095, 9487, 9593, 20585, 20815, 32399, 47435, 47965, 161995, 218201, 220639, 745177, 1091005, 1103195, 1717147, 3725885, 8585735, 39494381, 197471905]

約数ペア:

[(1, 197471905), (5, 39494381), (23, 8585735), (53, 3725885), (115, 1717147), (179, 1103195), (181, 1091005), (265, 745177), (895, 220639), (905, 218201), (1219, 161995), (4117, 47965), (4163, 47435), (6095, 32399), (9487, 20815), (9593, 20585)]