640793810

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{773}}^1\times {\mathrm{4363}}^1$

素因数の和:5162

約数の個数: 32

約数和(自身を含む): 1215984960

約数和(自身を除く): 575191150

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 773, 1546, 3865, 4363, 7730, 8726, 14687, 21815, 29374, 43630, 73435, 82897, 146870, 165794, 414485, 828970, 3372599, 6745198, 16862995, 33725990, 64079381, 128158762, 320396905, 640793810]

約数ペア:

[(1, 640793810), (2, 320396905), (5, 128158762), (10, 64079381), (19, 33725990), (38, 16862995), (95, 6745198), (190, 3372599), (773, 828970), (1546, 414485), (3865, 165794), (4363, 146870), (7730, 82897), (8726, 73435), (14687, 43630), (21815, 29374)]