261983340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{63281}}^1$

素因数の和:63319

約数の個数: 72

約数和(自身を含む): 829247328

約数和(自身を除く): 567263988

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 63281, 126562, 189843, 253124, 316405, 379686, 569529, 632810, 759372, 949215, 1139058, 1265620, 1455463, 1898430, 2278116, 2847645, 2910926, 3796860, 4366389, 5695290, 5821852, 7277315, 8732778, 11390580, 13099167, 14554630, 17465556, 21831945, 26198334, 29109260, 43663890, 52396668, 65495835, 87327780, 130991670, 261983340]

約数ペア:

[(1, 261983340), (2, 130991670), (3, 87327780), (4, 65495835), (5, 52396668), (6, 43663890), (9, 29109260), (10, 26198334), (12, 21831945), (15, 17465556), (18, 14554630), (20, 13099167), (23, 11390580), (30, 8732778), (36, 7277315), (45, 5821852), (46, 5695290), (60, 4366389), (69, 3796860), (90, 2910926), (92, 2847645), (115, 2278116), (138, 1898430), (180, 1455463), (207, 1265620), (230, 1139058), (276, 949215), (345, 759372), (414, 632810), (460, 569529), (690, 379686), (828, 316405), (1035, 253124), (1380, 189843), (2070, 126562), (4140, 63281)]