664226780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{18461}}^1$

素因数の和:18734

約数の個数: 48

約数和(自身を含む): 1600433856

約数和(自身を除く): 936207076

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 257, 514, 1028, 1285, 1799, 2570, 3598, 5140, 7196, 8995, 17990, 18461, 35980, 36922, 73844, 92305, 129227, 184610, 258454, 369220, 516908, 646135, 1292270, 2584540, 4744477, 9488954, 18977908, 23722385, 33211339, 47444770, 66422678, 94889540, 132845356, 166056695, 332113390, 664226780]

約数ペア:

[(1, 664226780), (2, 332113390), (4, 166056695), (5, 132845356), (7, 94889540), (10, 66422678), (14, 47444770), (20, 33211339), (28, 23722385), (35, 18977908), (70, 9488954), (140, 4744477), (257, 2584540), (514, 1292270), (1028, 646135), (1285, 516908), (1799, 369220), (2570, 258454), (3598, 184610), (5140, 129227), (7196, 92305), (8995, 73844), (17990, 36922), (18461, 35980)]