20710672

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{167}}^1\times {\mathrm{337}}^1$

素因数の和:535

約数の個数: 40

約数和(自身を含む): 42247296

約数和(自身を除く): 21536624

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 167, 184, 334, 337, 368, 668, 674, 1336, 1348, 2672, 2696, 3841, 5392, 7682, 7751, 15364, 15502, 30728, 31004, 56279, 61456, 62008, 112558, 124016, 225116, 450232, 900464, 1294417, 2588834, 5177668, 10355336, 20710672]

約数ペア:

[(1, 20710672), (2, 10355336), (4, 5177668), (8, 2588834), (16, 1294417), (23, 900464), (46, 450232), (92, 225116), (167, 124016), (184, 112558), (334, 62008), (337, 61456), (368, 56279), (668, 31004), (674, 30728), (1336, 15502), (1348, 15364), (2672, 7751), (2696, 7682), (3841, 5392)]