20946840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{1009}}^1$

素因数の和:1196

約数の個数: 64

約数和(自身を含む): 63266400

約数和(自身を除く): 42319560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 173, 346, 519, 692, 865, 1009, 1038, 1384, 1730, 2018, 2076, 2595, 3027, 3460, 4036, 4152, 5045, 5190, 6054, 6920, 8072, 10090, 10380, 12108, 15135, 20180, 20760, 24216, 30270, 40360, 60540, 121080, 174557, 349114, 523671, 698228, 872785, 1047342, 1396456, 1745570, 2094684, 2618355, 3491140, 4189368, 5236710, 6982280, 10473420, 20946840]

約数ペア:

[(1, 20946840), (2, 10473420), (3, 6982280), (4, 5236710), (5, 4189368), (6, 3491140), (8, 2618355), (10, 2094684), (12, 1745570), (15, 1396456), (20, 1047342), (24, 872785), (30, 698228), (40, 523671), (60, 349114), (120, 174557), (173, 121080), (346, 60540), (519, 40360), (692, 30270), (865, 24216), (1009, 20760), (1038, 20180), (1384, 15135), (1730, 12108), (2018, 10380), (2076, 10090), (2595, 8072), (3027, 6920), (3460, 6054), (4036, 5190), (4152, 5045)]