870818249

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 1099215360

約数和(自身を除く): 228397111

約数列:

[1, 7, 23, 49, 53, 61, 161, 239, 371, 427, 1127, 1219, 1403, 1673, 2597, 2989, 3233, 5497, 8533, 9821, 11711, 12667, 14579, 22631, 38479, 59731, 68747, 74359, 88669, 102053, 158417, 269353, 291341, 335317, 520513, 620683, 714371, 772687, 2039387, 2347219, 3643591, 5408809, 14275709, 16430533, 17771801, 37861663, 124402607, 870818249]

約数ペア:

[(1, 870818249), (7, 124402607), (23, 37861663), (49, 17771801), (53, 16430533), (61, 14275709), (161, 5408809), (239, 3643591), (371, 2347219), (427, 2039387), (1127, 772687), (1219, 714371), (1403, 620683), (1673, 520513), (2597, 335317), (2989, 291341), (3233, 269353), (5497, 158417), (8533, 102053), (9821, 88669), (11711, 74359), (12667, 68747), (14579, 59731), (22631, 38479)]