261470480

素因数分解:

$2^4\times 5^1\times {\mathrm{3268381}}^1$

素因数の和:3268394

約数の個数: 20

約数和(自身を含む): 607919052

約数和(自身を除く): 346448572

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3268381, 6536762, 13073524, 16341905, 26147048, 32683810, 52294096, 65367620, 130735240, 261470480]

約数ペア:

[(1, 261470480), (2, 130735240), (4, 65367620), (5, 52294096), (8, 32683810), (10, 26147048), (16, 16341905), (20, 13073524), (40, 6536762), (80, 3268381)]