123137920

素因数分解:

$2^7\times 5^1\times {\mathrm{181}}^1\times {\mathrm{1063}}^1$

素因数の和:1263

約数の個数: 64

約数和(自身を含む): 296281440

約数和(自身を除く): 173143520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 181, 320, 362, 640, 724, 905, 1063, 1448, 1810, 2126, 2896, 3620, 4252, 5315, 5792, 7240, 8504, 10630, 11584, 14480, 17008, 21260, 23168, 28960, 34016, 42520, 57920, 68032, 85040, 115840, 136064, 170080, 192403, 340160, 384806, 680320, 769612, 962015, 1539224, 1924030, 3078448, 3848060, 6156896, 7696120, 12313792, 15392240, 24627584, 30784480, 61568960, 123137920]

約数ペア:

[(1, 123137920), (2, 61568960), (4, 30784480), (5, 24627584), (8, 15392240), (10, 12313792), (16, 7696120), (20, 6156896), (32, 3848060), (40, 3078448), (64, 1924030), (80, 1539224), (128, 962015), (160, 769612), (181, 680320), (320, 384806), (362, 340160), (640, 192403), (724, 170080), (905, 136064), (1063, 115840), (1448, 85040), (1810, 68032), (2126, 57920), (2896, 42520), (3620, 34016), (4252, 28960), (5315, 23168), (5792, 21260), (7240, 17008), (8504, 14480), (10630, 11584)]