9990740

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{587}}^1$

素因数の和:656

約数の個数: 48

約数和(自身を含む): 22522752

約数和(自身を除く): 12532012

約数列:

[1, 2, 4, 5, 10, 20, 23, 37, 46, 74, 92, 115, 148, 185, 230, 370, 460, 587, 740, 851, 1174, 1702, 2348, 2935, 3404, 4255, 5870, 8510, 11740, 13501, 17020, 21719, 27002, 43438, 54004, 67505, 86876, 108595, 135010, 217190, 270020, 434380, 499537, 999074, 1998148, 2497685, 4995370, 9990740]

約数ペア:

[(1, 9990740), (2, 4995370), (4, 2497685), (5, 1998148), (10, 999074), (20, 499537), (23, 434380), (37, 270020), (46, 217190), (74, 135010), (92, 108595), (115, 86876), (148, 67505), (185, 54004), (230, 43438), (370, 27002), (460, 21719), (587, 17020), (740, 13501), (851, 11740), (1174, 8510), (1702, 5870), (2348, 4255), (2935, 3404)]