640262

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1$

素因数の和:140

約数の個数: 32

約数和(自身を含む): 1209600

約数和(自身を除く): 569338

約数列:

[1, 2, 7, 14, 19, 29, 38, 58, 83, 133, 166, 203, 266, 406, 551, 581, 1102, 1162, 1577, 2407, 3154, 3857, 4814, 7714, 11039, 16849, 22078, 33698, 45733, 91466, 320131, 640262]

約数ペア:

[(1, 640262), (2, 320131), (7, 91466), (14, 45733), (19, 33698), (29, 22078), (38, 16849), (58, 11039), (83, 7714), (133, 4814), (166, 3857), (203, 3154), (266, 2407), (406, 1577), (551, 1162), (581, 1102)]