261463820

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{349}}^1\times {\mathrm{797}}^1$

素因数の和:1202

約数の個数: 48

約数和(自身を含む): 563068800

約数和(自身を除く): 301604980

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 349, 470, 698, 797, 940, 1396, 1594, 1745, 3188, 3490, 3985, 6980, 7970, 15940, 16403, 32806, 37459, 65612, 74918, 82015, 149836, 164030, 187295, 278153, 328060, 374590, 556306, 749180, 1112612, 1390765, 2781530, 5563060, 13073191, 26146382, 52292764, 65365955, 130731910, 261463820]

約数ペア:

[(1, 261463820), (2, 130731910), (4, 65365955), (5, 52292764), (10, 26146382), (20, 13073191), (47, 5563060), (94, 2781530), (188, 1390765), (235, 1112612), (349, 749180), (470, 556306), (698, 374590), (797, 328060), (940, 278153), (1396, 187295), (1594, 164030), (1745, 149836), (3188, 82015), (3490, 74918), (3985, 65612), (6980, 37459), (7970, 32806), (15940, 16403)]