1808726679

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{269}}^1$

素因数の和:574

約数の個数: 80

約数和(自身を含む): 3034389600

約数和(自身を除く): 1225662921

約数列:

[1, 3, 9, 17, 19, 27, 51, 57, 81, 153, 171, 257, 269, 323, 459, 513, 771, 807, 969, 1377, 1539, 2313, 2421, 2907, 4369, 4573, 4883, 5111, 6939, 7263, 8721, 13107, 13719, 14649, 15333, 20817, 21789, 26163, 39321, 41157, 43947, 45999, 69133, 83011, 86887, 117963, 123471, 131841, 137997, 207399, 249033, 260661, 353889, 370413, 395523, 413991, 622197, 747099, 781983, 1175261, 1313527, 1866591, 2241297, 2345949, 3525783, 3940581, 5599773, 6723891, 7037847, 10577349, 11821743, 22329959, 31732047, 35465229, 66989877, 95196141, 106395687, 200969631, 602908893, 1808726679]

約数ペア:

[(1, 1808726679), (3, 602908893), (9, 200969631), (17, 106395687), (19, 95196141), (27, 66989877), (51, 35465229), (57, 31732047), (81, 22329959), (153, 11821743), (171, 10577349), (257, 7037847), (269, 6723891), (323, 5599773), (459, 3940581), (513, 3525783), (771, 2345949), (807, 2241297), (969, 1866591), (1377, 1313527), (1539, 1175261), (2313, 781983), (2421, 747099), (2907, 622197), (4369, 413991), (4573, 395523), (4883, 370413), (5111, 353889), (6939, 260661), (7263, 249033), (8721, 207399), (13107, 137997), (13719, 131841), (14649, 123471), (15333, 117963), (20817, 86887), (21789, 83011), (26163, 69133), (39321, 45999), (41157, 43947)]