20173987676

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{211}}^1\times {\mathrm{431}}^1\times {\mathrm{1789}}^1$

素因数の和:2466

約数の個数: 48

約数和(自身を含む): 36721520640

約数和(自身を除く): 16547532964

約数列:

[1, 2, 4, 31, 62, 124, 211, 422, 431, 844, 862, 1724, 1789, 3578, 6541, 7156, 13082, 13361, 26164, 26722, 53444, 55459, 90941, 110918, 181882, 221836, 363764, 377479, 754958, 771059, 1509916, 1542118, 2819171, 3084236, 5638342, 11276684, 11701849, 23403698, 23902829, 46807396, 47805658, 95611316, 162693449, 325386898, 650773796, 5043496919, 10086993838, 20173987676]

約数ペア:

[(1, 20173987676), (2, 10086993838), (4, 5043496919), (31, 650773796), (62, 325386898), (124, 162693449), (211, 95611316), (422, 47805658), (431, 46807396), (844, 23902829), (862, 23403698), (1724, 11701849), (1789, 11276684), (3578, 5638342), (6541, 3084236), (7156, 2819171), (13082, 1542118), (13361, 1509916), (26164, 771059), (26722, 754958), (53444, 377479), (55459, 363764), (90941, 221836), (110918, 181882)]