1277999728

素因数分解:

$2^4\times {\mathrm{79874983}}^1$

素因数の和:79874991

約数の個数: 10

約数和(自身を含む): 2476124504

約数和(自身を除く): 1198124776

約数列:

[1, 2, 4, 8, 16, 79874983, 159749966, 319499932, 638999864, 1277999728]

約数ペア:

[(1, 1277999728), (2, 638999864), (4, 319499932), (8, 159749966), (16, 79874983)]