51255555

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:252

約数の個数: 64

約数和(自身を含む): 93327360

約数和(自身を除く): 42071805

約数列:

[1, 3, 5, 13, 15, 31, 39, 61, 65, 93, 139, 155, 183, 195, 305, 403, 417, 465, 695, 793, 915, 1209, 1807, 1891, 2015, 2085, 2379, 3965, 4309, 5421, 5673, 6045, 8479, 9035, 9455, 11895, 12927, 21545, 24583, 25437, 27105, 28365, 42395, 56017, 64635, 73749, 110227, 122915, 127185, 168051, 262849, 280085, 330681, 368745, 551135, 788547, 840255, 1314245, 1653405, 3417037, 3942735, 10251111, 17085185, 51255555]

約数ペア:

[(1, 51255555), (3, 17085185), (5, 10251111), (13, 3942735), (15, 3417037), (31, 1653405), (39, 1314245), (61, 840255), (65, 788547), (93, 551135), (139, 368745), (155, 330681), (183, 280085), (195, 262849), (305, 168051), (403, 127185), (417, 122915), (465, 110227), (695, 73749), (793, 64635), (915, 56017), (1209, 42395), (1807, 28365), (1891, 27105), (2015, 25437), (2085, 24583), (2379, 21545), (3965, 12927), (4309, 11895), (5421, 9455), (5673, 9035), (6045, 8479)]