2157925

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1$

素因数の和:106

約数の個数: 48

約数和(自身を含む): 3571200

約数和(自身を除く): 1413275

約数列:

[1, 5, 7, 11, 19, 25, 35, 55, 59, 77, 95, 133, 175, 209, 275, 295, 385, 413, 475, 649, 665, 1045, 1121, 1463, 1475, 1925, 2065, 3245, 3325, 4543, 5225, 5605, 7315, 7847, 10325, 12331, 16225, 22715, 28025, 36575, 39235, 61655, 86317, 113575, 196175, 308275, 431585, 2157925]

約数ペア:

[(1, 2157925), (5, 431585), (7, 308275), (11, 196175), (19, 113575), (25, 86317), (35, 61655), (55, 39235), (59, 36575), (77, 28025), (95, 22715), (133, 16225), (175, 12331), (209, 10325), (275, 7847), (295, 7315), (385, 5605), (413, 5225), (475, 4543), (649, 3325), (665, 3245), (1045, 2065), (1121, 1925), (1463, 1475)]