7976780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{251}}^1$

素因数の和:494

約数の個数: 48

約数和(自身を含む): 19305216

約数和(自身を除く): 11328436

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 227, 251, 454, 502, 908, 1004, 1135, 1255, 1589, 1757, 2270, 2510, 3178, 3514, 4540, 5020, 6356, 7028, 7945, 8785, 15890, 17570, 31780, 35140, 56977, 113954, 227908, 284885, 398839, 569770, 797678, 1139540, 1595356, 1994195, 3988390, 7976780]

約数ペア:

[(1, 7976780), (2, 3988390), (4, 1994195), (5, 1595356), (7, 1139540), (10, 797678), (14, 569770), (20, 398839), (28, 284885), (35, 227908), (70, 113954), (140, 56977), (227, 35140), (251, 31780), (454, 17570), (502, 15890), (908, 8785), (1004, 7945), (1135, 7028), (1255, 6356), (1589, 5020), (1757, 4540), (2270, 3514), (2510, 3178)]