81963910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61627}}^1$

素因数の和:61660

約数の個数: 32

約数和(自身を含む): 177488640

約数和(自身を除く): 95524730

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665, 1330, 61627, 123254, 308135, 431389, 616270, 862778, 1170913, 2156945, 2341826, 4313890, 5854565, 8196391, 11709130, 16392782, 40981955, 81963910]

約数ペア:

[(1, 81963910), (2, 40981955), (5, 16392782), (7, 11709130), (10, 8196391), (14, 5854565), (19, 4313890), (35, 2341826), (38, 2156945), (70, 1170913), (95, 862778), (133, 616270), (190, 431389), (266, 308135), (665, 123254), (1330, 61627)]