667755

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:112

約数の個数: 48

約数和(自身を含む): 1347840

約数和(自身を除く): 680085

約数列:

[1, 3, 5, 9, 11, 15, 19, 33, 45, 55, 57, 71, 95, 99, 165, 171, 209, 213, 285, 355, 495, 627, 639, 781, 855, 1045, 1065, 1349, 1881, 2343, 3135, 3195, 3905, 4047, 6745, 7029, 9405, 11715, 12141, 14839, 20235, 35145, 44517, 60705, 74195, 133551, 222585, 667755]

約数ペア:

[(1, 667755), (3, 222585), (5, 133551), (9, 74195), (11, 60705), (15, 44517), (19, 35145), (33, 20235), (45, 14839), (55, 12141), (57, 11715), (71, 9405), (95, 7029), (99, 6745), (165, 4047), (171, 3905), (209, 3195), (213, 3135), (285, 2343), (355, 1881), (495, 1349), (627, 1065), (639, 1045), (781, 855)]