231509488

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{509}}^1$

素因数の和:686

約数の個数: 80

約数和(自身を含む): 534251520

約数和(自身を除く): 302742032

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 131, 217, 248, 262, 434, 496, 509, 524, 868, 917, 1018, 1048, 1736, 1834, 2036, 2096, 3472, 3563, 3668, 4061, 4072, 7126, 7336, 8122, 8144, 14252, 14672, 15779, 16244, 28427, 28504, 31558, 32488, 56854, 57008, 63116, 64976, 66679, 110453, 113708, 126232, 133358, 220906, 227416, 252464, 266716, 441812, 454832, 466753, 533432, 883624, 933506, 1066864, 1767248, 1867012, 2067049, 3734024, 4134098, 7468048, 8268196, 14469343, 16536392, 28938686, 33072784, 57877372, 115754744, 231509488]

約数ペア:

[(1, 231509488), (2, 115754744), (4, 57877372), (7, 33072784), (8, 28938686), (14, 16536392), (16, 14469343), (28, 8268196), (31, 7468048), (56, 4134098), (62, 3734024), (112, 2067049), (124, 1867012), (131, 1767248), (217, 1066864), (248, 933506), (262, 883624), (434, 533432), (496, 466753), (509, 454832), (524, 441812), (868, 266716), (917, 252464), (1018, 227416), (1048, 220906), (1736, 133358), (1834, 126232), (2036, 113708), (2096, 110453), (3472, 66679), (3563, 64976), (3668, 63116), (4061, 57008), (4072, 56854), (7126, 32488), (7336, 31558), (8122, 28504), (8144, 28427), (14252, 16244), (14672, 15779)]