1330841240

素因数分解:

$2^3\times 5^1\times {\mathrm{2591}}^1\times {\mathrm{12841}}^1$

素因数の和:15443

約数の個数: 32

約数和(自身を含む): 2995781760

約数和(自身を除く): 1664940520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2591, 5182, 10364, 12841, 12955, 20728, 25682, 25910, 51364, 51820, 64205, 102728, 103640, 128410, 256820, 513640, 33271031, 66542062, 133084124, 166355155, 266168248, 332710310, 665420620, 1330841240]

約数ペア:

[(1, 1330841240), (2, 665420620), (4, 332710310), (5, 266168248), (8, 166355155), (10, 133084124), (20, 66542062), (40, 33271031), (2591, 513640), (5182, 256820), (10364, 128410), (12841, 103640), (12955, 102728), (20728, 64205), (25682, 51820), (25910, 51364)]