641816

素因数分解:

$2^3\times 7^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:243

約数の個数: 32

約数和(自身を含む): 1403040

約数和(自身を除く): 761224

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 73, 146, 157, 292, 314, 511, 584, 628, 1022, 1099, 1256, 2044, 2198, 4088, 4396, 8792, 11461, 22922, 45844, 80227, 91688, 160454, 320908, 641816]

約数ペア:

[(1, 641816), (2, 320908), (4, 160454), (7, 91688), (8, 80227), (14, 45844), (28, 22922), (56, 11461), (73, 8792), (146, 4396), (157, 4088), (292, 2198), (314, 2044), (511, 1256), (584, 1099), (628, 1022)]