42720688

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{65123}}^1$

素因数の和:65172

約数の個数: 20

約数和(自身を含む): 84791448

約数和(自身を除く): 42070760

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 65123, 130246, 260492, 520984, 1041968, 2670043, 5340086, 10680172, 21360344, 42720688]

約数ペア:

[(1, 42720688), (2, 21360344), (4, 10680172), (8, 5340086), (16, 2670043), (41, 1041968), (82, 520984), (164, 260492), (328, 130246), (656, 65123)]