20409372

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{157}}^2$

素因数の和:347

約数の個数: 54

約数和(自身を含む): 54178488

約数和(自身を除く): 33769116

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 157, 207, 276, 314, 414, 471, 628, 828, 942, 1413, 1884, 2826, 3611, 5652, 7222, 10833, 14444, 21666, 24649, 32499, 43332, 49298, 64998, 73947, 98596, 129996, 147894, 221841, 295788, 443682, 566927, 887364, 1133854, 1700781, 2267708, 3401562, 5102343, 6803124, 10204686, 20409372]

約数ペア:

[(1, 20409372), (2, 10204686), (3, 6803124), (4, 5102343), (6, 3401562), (9, 2267708), (12, 1700781), (18, 1133854), (23, 887364), (36, 566927), (46, 443682), (69, 295788), (92, 221841), (138, 147894), (157, 129996), (207, 98596), (276, 73947), (314, 64998), (414, 49298), (471, 43332), (628, 32499), (828, 24649), (942, 21666), (1413, 14444), (1884, 10833), (2826, 7222), (3611, 5652)]