20071790

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{709}}^1$

素因数の和:884

約数の個数: 32

約数和(自身を含む): 38340000

約数和(自身を除く): 18268210

約数列:

[1, 2, 5, 10, 19, 38, 95, 149, 190, 298, 709, 745, 1418, 1490, 2831, 3545, 5662, 7090, 13471, 14155, 26942, 28310, 67355, 105641, 134710, 211282, 528205, 1056410, 2007179, 4014358, 10035895, 20071790]

約数ペア:

[(1, 20071790), (2, 10035895), (5, 4014358), (10, 2007179), (19, 1056410), (38, 528205), (95, 211282), (149, 134710), (190, 105641), (298, 67355), (709, 28310), (745, 26942), (1418, 14155), (1490, 13471), (2831, 7090), (3545, 5662)]