About the Number

201720028

201720027 ← → 201720029

2進数表記:1100000001100000000011011100

漢数字表記:二億百七十二万二十八

素因数分解:

2 2 × 17 1 × 23 1 × 101 1 × 1277 1

素因数の和:1422
約数の個数: 48
約数和(自身を含む): 394196544
約数和(自身を除く): 192476516

約数列:
[1, 2, 4, 17, 23, 34, 46, 68, 92, 101, 202, 391, 404, 782, 1277, 1564, 1717, 2323, 2554, 3434, 4646, 5108, 6868, 9292, 21709, 29371, 39491, 43418, 58742, 78982, 86836, 117484, 128977, 157964, 257954, 499307, 515908, 998614, 1997228, 2192609, 2966471, 4385218, 5932942, 8770436, 11865884, 50430007, 100860014, 201720028]

約数ペア:
[(1, 201720028), (2, 100860014), (4, 50430007), (17, 11865884), (23, 8770436), (34, 5932942), (46, 4385218), (68, 2966471), (92, 2192609), (101, 1997228), (202, 998614), (391, 515908), (404, 499307), (782, 257954), (1277, 157964), (1564, 128977), (1717, 117484), (2323, 86836), (2554, 78982), (3434, 58742), (4646, 43418), (5108, 39491), (6868, 29371), (9292, 21709)]

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