20945004

素因数分解:

$2^2\times 3^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{239}}^1$

素因数の和:422

約数の個数: 48

約数和(自身を含む): 50265600

約数和(自身を除く): 29320596

約数列:

[1, 2, 3, 4, 6, 12, 67, 109, 134, 201, 218, 239, 268, 327, 402, 436, 478, 654, 717, 804, 956, 1308, 1434, 2868, 7303, 14606, 16013, 21909, 26051, 29212, 32026, 43818, 48039, 52102, 64052, 78153, 87636, 96078, 104204, 156306, 192156, 312612, 1745417, 3490834, 5236251, 6981668, 10472502, 20945004]

約数ペア:

[(1, 20945004), (2, 10472502), (3, 6981668), (4, 5236251), (6, 3490834), (12, 1745417), (67, 312612), (109, 192156), (134, 156306), (201, 104204), (218, 96078), (239, 87636), (268, 78153), (327, 64052), (402, 52102), (436, 48039), (478, 43818), (654, 32026), (717, 29212), (804, 26051), (956, 21909), (1308, 16013), (1434, 14606), (2868, 7303)]