80208990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{2179}}^1$

素因数の和:2601

約数の個数: 48

約数和(自身を含む): 209149200

約数和(自身を除く): 128940210

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 409, 818, 1227, 2045, 2179, 2454, 3681, 4090, 4358, 6135, 6537, 7362, 10895, 12270, 13074, 18405, 19611, 21790, 32685, 36810, 39222, 65370, 98055, 196110, 891211, 1782422, 2673633, 4456055, 5347266, 8020899, 8912110, 13368165, 16041798, 26736330, 40104495, 80208990]

約数ペア:

[(1, 80208990), (2, 40104495), (3, 26736330), (5, 16041798), (6, 13368165), (9, 8912110), (10, 8020899), (15, 5347266), (18, 4456055), (30, 2673633), (45, 1782422), (90, 891211), (409, 196110), (818, 98055), (1227, 65370), (2045, 39222), (2179, 36810), (2454, 32685), (3681, 21790), (4090, 19611), (4358, 18405), (6135, 13074), (6537, 12270), (7362, 10895)]