178520020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{55441}}^1$

素因数の和:55480

約数の個数: 48

約数和(自身を含む): 447084288

約数和(自身を除く): 268564268

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 55441, 110882, 221764, 277205, 388087, 554410, 776174, 1108820, 1275143, 1552348, 1940435, 2550286, 3880870, 5100572, 6375715, 7761740, 8926001, 12751430, 17852002, 25502860, 35704004, 44630005, 89260010, 178520020]

約数ペア:

[(1, 178520020), (2, 89260010), (4, 44630005), (5, 35704004), (7, 25502860), (10, 17852002), (14, 12751430), (20, 8926001), (23, 7761740), (28, 6375715), (35, 5100572), (46, 3880870), (70, 2550286), (92, 1940435), (115, 1552348), (140, 1275143), (161, 1108820), (230, 776174), (322, 554410), (460, 388087), (644, 277205), (805, 221764), (1610, 110882), (3220, 55441)]