80894723

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:172

約数の個数: 48

約数和(自身を含む): 108921600

約数和(自身を除く): 28026877

約数列:

[1, 7, 13, 19, 59, 61, 91, 133, 169, 247, 413, 427, 767, 793, 1121, 1159, 1183, 1729, 3211, 3599, 5369, 5551, 7847, 8113, 9971, 10309, 14573, 15067, 22477, 25193, 46787, 68381, 69797, 72163, 102011, 105469, 189449, 195871, 327509, 478667, 608231, 888953, 1326143, 1371097, 4257617, 6222671, 11556389, 80894723]

約数ペア:

[(1, 80894723), (7, 11556389), (13, 6222671), (19, 4257617), (59, 1371097), (61, 1326143), (91, 888953), (133, 608231), (169, 478667), (247, 327509), (413, 195871), (427, 189449), (767, 105469), (793, 102011), (1121, 72163), (1159, 69797), (1183, 68381), (1729, 46787), (3211, 25193), (3599, 22477), (5369, 15067), (5551, 14573), (7847, 10309), (8113, 9971)]