257995836

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{223}}^1\times {\mathrm{4591}}^1$

素因数の和:4831

約数の個数: 72

約数和(自身を含む): 748826624

約数和(自身を除く): 490830788

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 223, 252, 446, 669, 892, 1338, 1561, 2007, 2676, 3122, 4014, 4591, 4683, 6244, 8028, 9182, 9366, 13773, 14049, 18364, 18732, 27546, 28098, 32137, 41319, 55092, 56196, 64274, 82638, 96411, 128548, 165276, 192822, 289233, 385644, 578466, 1023793, 1156932, 2047586, 3071379, 4095172, 6142758, 7166551, 9214137, 12285516, 14333102, 18428274, 21499653, 28666204, 36856548, 42999306, 64498959, 85998612, 128997918, 257995836]

約数ペア:

[(1, 257995836), (2, 128997918), (3, 85998612), (4, 64498959), (6, 42999306), (7, 36856548), (9, 28666204), (12, 21499653), (14, 18428274), (18, 14333102), (21, 12285516), (28, 9214137), (36, 7166551), (42, 6142758), (63, 4095172), (84, 3071379), (126, 2047586), (223, 1156932), (252, 1023793), (446, 578466), (669, 385644), (892, 289233), (1338, 192822), (1561, 165276), (2007, 128548), (2676, 96411), (3122, 82638), (4014, 64274), (4591, 56196), (4683, 55092), (6244, 41319), (8028, 32137), (9182, 28098), (9366, 27546), (13773, 18732), (14049, 18364)]