85987850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{503}}^1$

素因数の和:791

約数の個数: 48

約数和(自身を含む): 173238912

約数和(自身を除く): 87251062

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 263, 325, 503, 526, 650, 1006, 1315, 2515, 2630, 3419, 5030, 6539, 6575, 6838, 12575, 13078, 13150, 17095, 25150, 32695, 34190, 65390, 85475, 132289, 163475, 170950, 264578, 326950, 661445, 1322890, 1719757, 3307225, 3439514, 6614450, 8598785, 17197570, 42993925, 85987850]

約数ペア:

[(1, 85987850), (2, 42993925), (5, 17197570), (10, 8598785), (13, 6614450), (25, 3439514), (26, 3307225), (50, 1719757), (65, 1322890), (130, 661445), (263, 326950), (325, 264578), (503, 170950), (526, 163475), (650, 132289), (1006, 85475), (1315, 65390), (2515, 34190), (2630, 32695), (3419, 25150), (5030, 17095), (6539, 13150), (6575, 13078), (6838, 12575)]