138912640

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^1\times {\mathrm{9437}}^1$

素因数の和:9479

約数の個数: 64

約数和(自身を含む): 346563360

約数和(自身を除く): 207650720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 320, 368, 460, 640, 736, 920, 1472, 1840, 2944, 3680, 7360, 9437, 14720, 18874, 37748, 47185, 75496, 94370, 150992, 188740, 217051, 301984, 377480, 434102, 603968, 754960, 868204, 1085255, 1207936, 1509920, 1736408, 2170510, 3019840, 3472816, 4341020, 6039680, 6945632, 8682040, 13891264, 17364080, 27782528, 34728160, 69456320, 138912640]

約数ペア:

[(1, 138912640), (2, 69456320), (4, 34728160), (5, 27782528), (8, 17364080), (10, 13891264), (16, 8682040), (20, 6945632), (23, 6039680), (32, 4341020), (40, 3472816), (46, 3019840), (64, 2170510), (80, 1736408), (92, 1509920), (115, 1207936), (128, 1085255), (160, 868204), (184, 754960), (230, 603968), (320, 434102), (368, 377480), (460, 301984), (640, 217051), (736, 188740), (920, 150992), (1472, 94370), (1840, 75496), (2944, 47185), (3680, 37748), (7360, 18874), (9437, 14720)]