80944760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{155663}}^1$

素因数の和:155687

約数の個数: 32

約数和(自身を含む): 196136640

約数和(自身を除く): 115191880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 155663, 311326, 622652, 778315, 1245304, 1556630, 2023619, 3113260, 4047238, 6226520, 8094476, 10118095, 16188952, 20236190, 40472380, 80944760]

約数ペア:

[(1, 80944760), (2, 40472380), (4, 20236190), (5, 16188952), (8, 10118095), (10, 8094476), (13, 6226520), (20, 4047238), (26, 3113260), (40, 2023619), (52, 1556630), (65, 1245304), (104, 778315), (130, 622652), (260, 311326), (520, 155663)]